151490772 has 18 divisors (see below), whose sum is σ = 382935098. Its totient is φ = 50496912.

The previous prime is 151490767. The next prime is 151490789. The reversal of 151490772 is 277094151.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 144865296 + 6625476 = 12036^2 + 2574^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4208077 = 151490772 / (1 + 5 + 1 + 4 + 9 + 0 + 7 + 7 + 2).

It is a congruent 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 5 ways as a sum of consecutive naturals, for example, 2104003 + ... + 2104074.

Almost surely, 2^151490772 is an apocalyptic number.

151490772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

151490772 is an abundant number, since it is smaller than the sum of its proper divisors (231444326).

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

151490772 is a wasteful number, since it uses less digits than its factorization.

151490772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4208087 (or 4208082 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 151490772 is about 12308.1587575072. The cubic root of 151490772 is about 533.0836871553.

The spelling of 151490772 in words is "one hundred fifty-one million, four hundred ninety thousand, seven hundred seventy-two".