190173157 has 2 divisors, whose sum is σ = 190173158. Its totient is φ = 190173156.

The previous prime is 190173119. The next prime is 190173163. The reversal of 190173157 is 751371091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152547201 + 37625956 = 12351^2 + 6134^2 .

It is a cyclic number.

It is not a de Polignac number, because 190173157 - 2⁷ = 190173029 is a prime.

It is a super-3 number, since 3×190173157³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190173187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95086578 + 95086579.

It is an arithmetic number, because the mean of its divisors is an integer number (95086579).

Almost surely, 2^190173157 is an apocalyptic number.

It is an amenable number.

190173157 is a deficient number, since it is larger than the sum of its proper divisors (1).

190173157 is an equidigital number, since it uses as much as digits as its factorization.

190173157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6615, while the sum is 34.

The square root of 190173157 is about 13790.3283862278. The cubic root of 190173157 is about 575.0642972838.

The spelling of 190173157 in words is "one hundred ninety million, one hundred seventy-three thousand, one hundred fifty-seven".