157811044 has 6 divisors (see below), whose sum is σ = 276169334. Its totient is φ = 78905520.

The previous prime is 157811029. The next prime is 157811053. The reversal of 157811044 is 440118751.

It can be written as a sum of positive squares in only one way, i.e., 115820644 + 41990400 = 10762^2 + 6480^2 .

It is a junction number, because it is equal to n+sod(n) for n = 157810997 and 157811015.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19726377 + ... + 19726384.

Almost surely, 2^157811044 is an apocalyptic number.

It is an amenable number.

157811044 is a deficient number, since it is larger than the sum of its proper divisors (118358290).

157811044 is a wasteful number, since it uses less digits than its factorization.

157811044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39452765 (or 39452763 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 157811044 is about 12562.2865753015. The cubic root of 157811044 is about 540.3964213020.

Adding to 157811044 its reverse (440118751), we get a palindrome (597929795).

The spelling of 157811044 in words is "one hundred fifty-seven million, eight hundred eleven thousand, forty-four".