151021040 has 60 divisors (see below), whose sum is σ = 360217272. Its totient is φ = 58882560.

The previous prime is 151021037. The next prime is 151021049. The reversal of 151021040 is 40120151.

It is a super-3 number, since 3×151021040³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151021049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133919 + ... + 135041.

Almost surely, 2^151021040 is an apocalyptic number.

151021040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151021040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180108636).

151021040 is an abundant number, since it is smaller than the sum of its proper divisors (209196232).

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

151021040 is a wasteful number, since it uses less digits than its factorization.

151021040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218 (or 1171 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 151021040 is about 12289.0618030833. The cubic root of 151021040 is about 532.5321338070.

Adding to 151021040 its reverse (40120151), we get a palindrome (191141191).

The spelling of 151021040 in words is "one hundred fifty-one million, twenty-one thousand, forty".