157718053 has 2 divisors, whose sum is σ = 157718054. Its totient is φ = 157718052.

The previous prime is 157718017. The next prime is 157718063. The reversal of 157718053 is 350817751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99241444 + 58476609 = 9962^2 + 7647^2 .

It is an emirp because it is prime and its reverse (350817751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157718053 - 2⁹ = 157717541 is a prime.

It is a super-2 number, since 2×157718053² = 49749968484221618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157718063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78859026 + 78859027.

It is an arithmetic number, because the mean of its divisors is an integer number (78859027).

Almost surely, 2^157718053 is an apocalyptic number.

It is an amenable number.

157718053 is a deficient number, since it is larger than the sum of its proper divisors (1).

157718053 is an equidigital number, since it uses as much as digits as its factorization.

157718053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29400, while the sum is 37.

The square root of 157718053 is about 12558.5848326951. The cubic root of 157718053 is about 540.2902566213.

The spelling of 157718053 in words is "one hundred fifty-seven million, seven hundred eighteen thousand, fifty-three".