151551956 has 6 divisors (see below), whose sum is σ = 265215930. Its totient is φ = 75775976.

The previous prime is 151551937. The next prime is 151551973. The reversal of 151551956 is 659155151.

151551956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 143520400 + 8031556 = 11980^2 + 2834^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18943991 + ... + 18943998.

It is an arithmetic number, because the mean of its divisors is an integer number (44202655).

Almost surely, 2^151551956 is an apocalyptic number.

It is an amenable number.

151551956 is a deficient number, since it is larger than the sum of its proper divisors (113663974).

151551956 is a wasteful number, since it uses less digits than its factorization.

151551956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37887993 (or 37887991 counting only the distinct ones).

The product of its digits is 33750, while the sum is 38.

The square root of 151551956 is about 12310.6440123984. The cubic root of 151551956 is about 533.1554446664.

The spelling of 151551956 in words is "one hundred fifty-one million, five hundred fifty-one thousand, nine hundred fifty-six".