151321716 has 192 divisors, whose sum is σ = 491097600. Its totient is φ = 39232512.

The previous prime is 151321697. The next prime is 151321721. The reversal of 151321716 is 617123151.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 151321716.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 874606 + ... + 874778.

It is an arithmetic number, because the mean of its divisors is an integer number (2557800).

Almost surely, 2^151321716 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 151321716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245548800).

151321716 is an abundant number, since it is smaller than the sum of its proper divisors (339775884).

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

151321716 is a wasteful number, since it uses less digits than its factorization.

151321716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295 (or 287 counting only the distinct ones).

The product of its digits is 1260, while the sum is 27.

The square root of 151321716 is about 12301.2892007301. The cubic root of 151321716 is about 532.8853152481.

Adding to 151321716 its reverse (617123151), we get a palindrome (768444867).

The spelling of 151321716 in words is "one hundred fifty-one million, three hundred twenty-one thousand, seven hundred sixteen".