157445572 has 6 divisors (see below), whose sum is σ = 275529758. Its totient is φ = 78722784.

The previous prime is 157445537. The next prime is 157445579. The reversal of 157445572 is 275544751.

It can be written as a sum of positive squares in only one way, i.e., 157351936 + 93636 = 12544^2 + 306^2 .

It is not an unprimeable number, because it can be changed into a prime (157445579) by changing a digit.

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 as a sum of consecutive naturals, namely, 19680693 + ... + 19680700.

Almost surely, 2^157445572 is an apocalyptic number.

It is an amenable number.

157445572 is a deficient number, since it is larger than the sum of its proper divisors (118084186).

157445572 is a wasteful number, since it uses less digits than its factorization.

157445572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39361397 (or 39361395 counting only the distinct ones).

The product of its digits is 196000, while the sum is 40.

The square root of 157445572 is about 12547.7317472123. The cubic root of 157445572 is about 539.9789337918.

It can be divided in two parts, 15744 and 5572, that added together give a square (21316 = 146²).

The spelling of 157445572 in words is "one hundred fifty-seven million, four hundred forty-five thousand, five hundred seventy-two".