157268306 has 16 divisors (see below), whose sum is σ = 254619288. Its totient is φ = 72422400.

The previous prime is 157268303. The next prime is 157268311. The reversal of 157268306 is 603862751.

157268306 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 4 ways, for example, as 63856081 + 93412225 = 7991^2 + 9665^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 157268306.

It is not an unprimeable number, because it can be changed into a prime (157268303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5426 + ... + 18546.

Almost surely, 2^157268306 is an apocalyptic number.

157268306 is a deficient number, since it is larger than the sum of its proper divisors (97350982).

157268306 is a wasteful number, since it uses less digits than its factorization.

157268306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13597.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 157268306 is about 12540.6660907625. Note that the first 3 decimals coincide. The cubic root of 157268306 is about 539.7762058475.

The spelling of 157268306 in words is "one hundred fifty-seven million, two hundred sixty-eight thousand, three hundred six".