157748072 has 8 divisors (see below), whose sum is σ = 295777650. Its totient is φ = 78874032.

The previous prime is 157748047. The next prime is 157748077. The reversal of 157748072 is 270847751.

It can be written as a sum of positive squares in only one way, i.e., 86750596 + 70997476 = 9314^2 + 8426^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (157748077) 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, 9859247 + ... + 9859262.

Almost surely, 2^157748072 is an apocalyptic number.

It is an amenable number.

157748072 is a deficient number, since it is larger than the sum of its proper divisors (138029578).

157748072 is a wasteful number, since it uses less digits than its factorization.

157748072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19718515 (or 19718511 counting only the distinct ones).

The product of its (nonzero) digits is 109760, while the sum is 41.

The square root of 157748072 is about 12559.7799343778. The cubic root of 157748072 is about 540.3245328588.

The spelling of 157748072 in words is "one hundred fifty-seven million, seven hundred forty-eight thousand, seventy-two".