190957345 has 8 divisors (see below), whose sum is σ = 242628264. Its totient is φ = 143779584.

The previous prime is 190957337. The next prime is 190957369. The reversal of 190957345 is 543759091.

It can be written as a sum of positive squares in 4 ways, for example, as 14837904 + 176119441 = 3852^2 + 13271^2 .

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 190957345 - 2³ = 190957337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 1123194 + ... + 1123363.

It is an arithmetic number, because the mean of its divisors is an integer number (30328533).

Almost surely, 2^190957345 is an apocalyptic number.

It is an amenable number.

190957345 is a deficient number, since it is larger than the sum of its proper divisors (51670919).

190957345 is a wasteful number, since it uses less digits than its factorization.

190957345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246579.

The product of its (nonzero) digits is 170100, while the sum is 43.

The square root of 190957345 is about 13818.7316711774. The cubic root of 190957345 is about 575.8536482359.

The spelling of 190957345 in words is "one hundred ninety million, nine hundred fifty-seven thousand, three hundred forty-five".