151985916 has 48 divisors (see below), whose sum is σ = 417221280. Its totient is φ = 47681280.

The previous prime is 151985887. The next prime is 151985917. The reversal of 151985916 is 619589151.

151985916 is a `hidden beast` number, since 1 + 51 + 9 + 8 + 591 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151985917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39555 + ... + 43226.

It is an arithmetic number, because the mean of its divisors is an integer number (8692110).

Almost surely, 2^151985916 is an apocalyptic number.

It is an amenable number.

151985916 is an abundant number, since it is smaller than the sum of its proper divisors (265235364).

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

151985916 is a wasteful number, since it uses less digits than its factorization.

151985916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82811 (or 82803 counting only the distinct ones).

The product of its digits is 97200, while the sum is 45.

The square root of 151985916 is about 12328.2568110824. The cubic root of 151985916 is about 533.6638460033.

The spelling of 151985916 in words is "one hundred fifty-one million, nine hundred eighty-five thousand, nine hundred sixteen".