157381228 has 12 divisors (see below), whose sum is σ = 275930032. Its totient is φ = 78544080.

The previous prime is 157381207. The next prime is 157381253. The reversal of 157381228 is 822183751.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34200 + ... + 38527.

Almost surely, 2^157381228 is an apocalyptic number.

It is an amenable number.

157381228 is a deficient number, since it is larger than the sum of its proper divisors (118548804).

157381228 is a wasteful number, since it uses less digits than its factorization.

157381228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73272 (or 73270 counting only the distinct ones).

The product of its digits is 26880, while the sum is 37.

The square root of 157381228 is about 12545.1675158206. The cubic root of 157381228 is about 539.9053652178.

It can be divided in two parts, 157381 and 228, that added together give a square (157609 = 397²).

The spelling of 157381228 in words is "one hundred fifty-seven million, three hundred eighty-one thousand, two hundred twenty-eight".