157245229 has 2 divisors, whose sum is σ = 157245230. Its totient is φ = 157245228.

The previous prime is 157245173. The next prime is 157245233. The reversal of 157245229 is 922542751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123721129 + 33524100 = 11123^2 + 5790^2 .

It is a cyclic number.

It is not a de Polignac number, because 157245229 - 2¹¹ = 157243181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157245269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78622614 + 78622615.

It is an arithmetic number, because the mean of its divisors is an integer number (78622615).

Almost surely, 2^157245229 is an apocalyptic number.

It is an amenable number.

157245229 is a deficient number, since it is larger than the sum of its proper divisors (1).

157245229 is an equidigital number, since it uses as much as digits as its factorization.

157245229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 37.

The square root of 157245229 is about 12539.7459703138. The cubic root of 157245229 is about 539.7498029332.

The spelling of 157245229 in words is "one hundred fifty-seven million, two hundred forty-five thousand, two hundred twenty-nine".