190351057 has 8 divisors (see below), whose sum is σ = 217052136. Its totient is φ = 165372672.

The previous prime is 190351043. The next prime is 190351093. The reversal of 190351057 is 750153091.

It can be written as a sum of positive squares in 4 ways, for example, as 54302161 + 136048896 = 7369^2 + 11664^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190351057 is a prime.

It is a super-3 number, since 3×190351057³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190351027) by changing a digit.

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, 430438 + ... + 430879.

It is an arithmetic number, because the mean of its divisors is an integer number (27131517).

Almost surely, 2^190351057 is an apocalyptic number.

190351057 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

190351057 is a deficient number, since it is larger than the sum of its proper divisors (26701079).

190351057 is a wasteful number, since it uses less digits than its factorization.

190351057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861347.

The product of its (nonzero) digits is 4725, while the sum is 31.

The square root of 190351057 is about 13796.7770511812. Note that the first 3 decimals coincide. The cubic root of 190351057 is about 575.2435585706.

The spelling of 190351057 in words is "one hundred ninety million, three hundred fifty-one thousand, fifty-seven".