157828252 has 6 divisors (see below), whose sum is σ = 276199448. Its totient is φ = 78914124.

The previous prime is 157828217. The next prime is 157828309. The reversal of 157828252 is 252828751.

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 as a sum of consecutive naturals, namely, 19728528 + ... + 19728535.

Almost surely, 2^157828252 is an apocalyptic number.

It is an amenable number.

157828252 is a deficient number, since it is larger than the sum of its proper divisors (118371196).

157828252 is a wasteful number, since it uses less digits than its factorization.

157828252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39457067 (or 39457065 counting only the distinct ones).

The product of its digits is 89600, while the sum is 40.

The square root of 157828252 is about 12562.9714637899. The cubic root of 157828252 is about 540.4160625206.

The spelling of 157828252 in words is "one hundred fifty-seven million, eight hundred twenty-eight thousand, two hundred fifty-two".