157270073 has 2 divisors, whose sum is σ = 157270074. Its totient is φ = 157270072.

The previous prime is 157270063. The next prime is 157270117. The reversal of 157270073 is 370072751.

157270073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91546624 + 65723449 = 9568^2 + 8107^2 .

It is a cyclic number.

It is not a de Polignac number, because 157270073 - 2⁸ = 157269817 is a prime.

It is a super-2 number, since 2×157270073² = 49467751722850658, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (157270013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78635036 + 78635037.

It is an arithmetic number, because the mean of its divisors is an integer number (78635037).

Almost surely, 2^157270073 is an apocalyptic number.

It is an amenable number.

157270073 is a deficient number, since it is larger than the sum of its proper divisors (1).

157270073 is an equidigital number, since it uses as much as digits as its factorization.

157270073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10290, while the sum is 32.

The square root of 157270073 is about 12540.7365413679. The cubic root of 157270073 is about 539.7782274055.

The spelling of 157270073 in words is "one hundred fifty-seven million, two hundred seventy thousand, seventy-three".