157287244 has 12 divisors (see below), whose sum is σ = 289739800. Its totient is φ = 74504448.

The previous prime is 157287233. The next prime is 157287287. The reversal of 157287244 is 442782751.

It is a junction number, because it is equal to n+sod(n) for n = 157287197 and 157287206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1034709 + ... + 1034860.

Almost surely, 2^157287244 is an apocalyptic number.

It is an amenable number.

157287244 is a deficient number, since it is larger than the sum of its proper divisors (132452556).

157287244 is a wasteful number, since it uses less digits than its factorization.

157287244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069592 (or 2069590 counting only the distinct ones).

The product of its digits is 125440, while the sum is 40.

The square root of 157287244 is about 12541.4211315943. The cubic root of 157287244 is about 539.7978713095.

The spelling of 157287244 in words is "one hundred fifty-seven million, two hundred eighty-seven thousand, two hundred forty-four".