157434269 has 2 divisors, whose sum is σ = 157434270. Its totient is φ = 157434268.

The previous prime is 157434257. The next prime is 157434289. The reversal of 157434269 is 962434751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93354244 + 64080025 = 9662^2 + 8005^2 .

It is an emirp because it is prime and its reverse (962434751) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157434269 is a prime.

It is a super-2 number, since 2×157434269² = 49571098111128722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157434239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78717134 + 78717135.

It is an arithmetic number, because the mean of its divisors is an integer number (78717135).

Almost surely, 2^157434269 is an apocalyptic number.

It is an amenable number.

157434269 is a deficient number, since it is larger than the sum of its proper divisors (1).

157434269 is an equidigital number, since it uses as much as digits as its factorization.

157434269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 41.

The square root of 157434269 is about 12547.2813389993. The cubic root of 157434269 is about 539.9660118068.

The spelling of 157434269 in words is "one hundred fifty-seven million, four hundred thirty-four thousand, two hundred sixty-nine".