151861772 has 12 divisors (see below), whose sum is σ = 266050680. Its totient is φ = 75847296.

The previous prime is 151861769. The next prime is 151861781. The reversal of 151861772 is 277168151.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16718 + ... + 24149.

It is an arithmetic number, because the mean of its divisors is an integer number (22170890).

Almost surely, 2^151861772 is an apocalyptic number.

It is an amenable number.

151861772 is a deficient number, since it is larger than the sum of its proper divisors (114188908).

151861772 is a wasteful number, since it uses less digits than its factorization.

151861772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41800 (or 41798 counting only the distinct ones).

The product of its digits is 23520, while the sum is 38.

The square root of 151861772 is about 12323.2208452174. The cubic root of 151861772 is about 533.5185053194.

The spelling of 151861772 in words is "one hundred fifty-one million, eight hundred sixty-one thousand, seven hundred seventy-two".