157247716 has 12 divisors (see below), whose sum is σ = 276208380. Its totient is φ = 78331040.

The previous prime is 157247693. The next prime is 157247737. The reversal of 157247716 is 617742751.

It is a happy number.

157247716 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 78393316 + 78854400 = 8854^2 + 8880^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71995 + ... + 74146.

It is an arithmetic number, because the mean of its divisors is an integer number (23017365).

Almost surely, 2^157247716 is an apocalyptic number.

It is an amenable number.

157247716 is a deficient number, since it is larger than the sum of its proper divisors (118960664).

157247716 is a wasteful number, since it uses less digits than its factorization.

157247716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146414 (or 146412 counting only the distinct ones).

The product of its digits is 82320, while the sum is 40.

The square root of 157247716 is about 12539.8451346099. The cubic root of 157247716 is about 539.7526484900.

The spelling of 157247716 in words is "one hundred fifty-seven million, two hundred forty-seven thousand, seven hundred sixteen".