157018501 has 2 divisors, whose sum is σ = 157018502. Its totient is φ = 157018500.

The previous prime is 157018483. The next prime is 157018507. The reversal of 157018501 is 105810751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127577025 + 29441476 = 11295^2 + 5426^2 .

It is an emirp because it is prime and its reverse (105810751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157018501 - 2⁷ = 157018373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157018501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157018507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78509250 + 78509251.

It is an arithmetic number, because the mean of its divisors is an integer number (78509251).

Almost surely, 2^157018501 is an apocalyptic number.

It is an amenable number.

157018501 is a deficient number, since it is larger than the sum of its proper divisors (1).

157018501 is an equidigital number, since it uses as much as digits as its factorization.

157018501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1400, while the sum is 28.

The square root of 157018501 is about 12530.7023346658. The cubic root of 157018501 is about 539.4902608612.

The spelling of 157018501 in words is "one hundred fifty-seven million, eighteen thousand, five hundred one".