157284938 has 16 divisors (see below), whose sum is σ = 242048520. Its totient is φ = 76608000.

The previous prime is 157284937. The next prime is 157284943. The reversal of 157284938 is 839482751.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 43072969 + 114211969 = 6563^2 + 10687^2 .

It is a junction number, because it is equal to n+sod(n) for n = 157284892 and 157284901.

It is not an unprimeable number, because it can be changed into a prime (157284937) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 81788 + ... + 83688.

Almost surely, 2^157284938 is an apocalyptic number.

157284938 is a deficient number, since it is larger than the sum of its proper divisors (84763582).

157284938 is a wasteful number, since it uses less digits than its factorization.

157284938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2953.

The product of its digits is 483840, while the sum is 47.

The square root of 157284938 is about 12541.3291959026. The cubic root of 157284938 is about 539.7952332910.

The spelling of 157284938 in words is "one hundred fifty-seven million, two hundred eighty-four thousand, nine hundred thirty-eight".