157152739 has 2 divisors, whose sum is σ = 157152740. Its totient is φ = 157152738.

The previous prime is 157152731. The next prime is 157152823. The reversal of 157152739 is 937251751.

It is a weak prime.

It is an emirp because it is prime and its reverse (937251751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157152739 - 2³ = 157152731 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (157152731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78576369 + 78576370.

It is an arithmetic number, because the mean of its divisors is an integer number (78576370).

Almost surely, 2^157152739 is an apocalyptic number.

157152739 is a deficient number, since it is larger than the sum of its proper divisors (1).

157152739 is an equidigital number, since it uses as much as digits as its factorization.

157152739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66150, while the sum is 40.

The square root of 157152739 is about 12536.0575541117. The cubic root of 157152739 is about 539.6439571140.

The spelling of 157152739 in words is "one hundred fifty-seven million, one hundred fifty-two thousand, seven hundred thirty-nine".