157827017 has 2 divisors, whose sum is σ = 157827018. Its totient is φ = 157827016.

The previous prime is 157826969. The next prime is 157827037. The reversal of 157827017 is 710728751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147355321 + 10471696 = 12139^2 + 3236^2 .

It is a cyclic number.

It is not a de Polignac number, because 157827017 - 2¹⁸ = 157564873 is a prime.

It is a nialpdrome in base 15.

It is not a weakly prime, because it can be changed into another prime (157827037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78913508 + 78913509.

It is an arithmetic number, because the mean of its divisors is an integer number (78913509).

Almost surely, 2^157827017 is an apocalyptic number.

It is an amenable number.

157827017 is a deficient number, since it is larger than the sum of its proper divisors (1).

157827017 is an equidigital number, since it uses as much as digits as its factorization.

157827017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27440, while the sum is 38.

The square root of 157827017 is about 12562.9223113096. The cubic root of 157827017 is about 540.4146529386.

The spelling of 157827017 in words is "one hundred fifty-seven million, eight hundred twenty-seven thousand, seventeen".