157403117 has 2 divisors, whose sum is σ = 157403118. Its totient is φ = 157403116.

The previous prime is 157403093. The next prime is 157403123. The reversal of 157403117 is 711304751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114618436 + 42784681 = 10706^2 + 6541^2 .

It is an emirp because it is prime and its reverse (711304751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157403117 - 2¹⁶ = 157337581 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157403117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157403717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78701558 + 78701559.

It is an arithmetic number, because the mean of its divisors is an integer number (78701559).

Almost surely, 2^157403117 is an apocalyptic number.

It is an amenable number.

157403117 is a deficient number, since it is larger than the sum of its proper divisors (1).

157403117 is an equidigital number, since it uses as much as digits as its factorization.

157403117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 157403117 is about 12546.0398931296. The cubic root of 157403117 is about 539.9303945491.

Adding to 157403117 its reverse (711304751), we get a palindrome (868707868).

The spelling of 157403117 in words is "one hundred fifty-seven million, four hundred three thousand, one hundred seventeen".