157152497 has 2 divisors, whose sum is σ = 157152498. Its totient is φ = 157152496.

The previous prime is 157152481. The next prime is 157152503. The reversal of 157152497 is 794251751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128165041 + 28987456 = 11321^2 + 5384^2 .

It is an emirp because it is prime and its reverse (794251751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157152497 - 2⁴ = 157152481 is a prime.

It is not a weakly prime, because it can be changed into another prime (157152407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78576248 + 78576249.

It is an arithmetic number, because the mean of its divisors is an integer number (78576249).

Almost surely, 2^157152497 is an apocalyptic number.

It is an amenable number.

157152497 is a deficient number, since it is larger than the sum of its proper divisors (1).

157152497 is an equidigital number, since it uses as much as digits as its factorization.

157152497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88200, while the sum is 41.

The square root of 157152497 is about 12536.0479019506. The cubic root of 157152497 is about 539.6436801141.

The spelling of 157152497 in words is "one hundred fifty-seven million, one hundred fifty-two thousand, four hundred ninety-seven".