151021312 has 72 divisors (see below), whose sum is σ = 338927904. Its totient is φ = 66637824.

The previous prime is 151021303. The next prime is 151021313. The reversal of 151021312 is 213120151.

It is a super-3 number, since 3×151021312³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151021313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75558 + ... + 77530.

It is an arithmetic number, because the mean of its divisors is an integer number (4707332).

Almost surely, 2^151021312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151021312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169463952).

151021312 is an abundant number, since it is smaller than the sum of its proper divisors (187906592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

151021312 is a wasteful number, since it uses less digits than its factorization.

151021312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025 (or 2011 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 151021312 is about 12289.0728698303. The cubic root of 151021312 is about 532.5324535166.

Adding to 151021312 its reverse (213120151), we get a palindrome (364141463).

It can be divided in two parts, 1510 and 21312, that added together give a palindrome (22822).

The spelling of 151021312 in words is "one hundred fifty-one million, twenty-one thousand, three hundred twelve".