190957 has 8 divisors (see below), whose sum is σ = 211736. Its totient is φ = 171072.

The previous prime is 190921. The next prime is 190979. The reversal of 190957 is 759091.

It can be written as a sum of positive squares in 4 ways, for example, as 45796 + 145161 = 214^2 + 381^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 190957 - 2⁷ = 190829 is a prime.

It is a Duffinian number.

190957 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283 + ... + 679.

It is an arithmetic number, because the mean of its divisors is an integer number (26467).

2¹⁹⁰⁹⁵⁷ is an apocalyptic number.

It is an amenable number.

190957 is a deficient number, since it is larger than the sum of its proper divisors (20779).

190957 is a wasteful number, since it uses less digits than its factorization.

190957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447.

The product of its (nonzero) digits is 2835, while the sum is 31.

The square root of 190957 is about 436.9862698072. The cubic root of 190957 is about 57.5853301440.

The spelling of 190957 in words is "one hundred ninety thousand, nine hundred fifty-seven".