151972798 has 4 divisors (see below), whose sum is σ = 227959200. Its totient is φ = 75986398.

The previous prime is 151972771. The next prime is 151972813. The reversal of 151972798 is 897279151.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37993198 + ... + 37993201.

It is an arithmetic number, because the mean of its divisors is an integer number (56989800).

Almost surely, 2^151972798 is an apocalyptic number.

151972798 is a deficient number, since it is larger than the sum of its proper divisors (75986402).

151972798 is an equidigital number, since it uses as much as digits as its factorization.

151972798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75986401.

The product of its digits is 317520, while the sum is 49.

The square root of 151972798 is about 12327.7247698024. The cubic root of 151972798 is about 533.6484919408.

The spelling of 151972798 in words is "one hundred fifty-one million, nine hundred seventy-two thousand, seven hundred ninety-eight".