190870557 has 16 divisors (see below), whose sum is σ = 260640000. Its totient is φ = 124210944.

The previous prime is 190870553. The next prime is 190870591. The reversal of 190870557 is 755078091.

It is not a de Polignac number, because 190870557 - 2² = 190870553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190870553) 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 15 ways as a sum of consecutive naturals, for example, 16569 + ... + 25617.

It is an arithmetic number, because the mean of its divisors is an integer number (16290000).

Almost surely, 2^190870557 is an apocalyptic number.

It is an amenable number.

190870557 is a deficient number, since it is larger than the sum of its proper divisors (69769443).

190870557 is an equidigital number, since it uses as much as digits as its factorization.

190870557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9220.

The product of its (nonzero) digits is 88200, while the sum is 42.

The square root of 190870557 is about 13815.5910839891. The cubic root of 190870557 is about 575.7663953127.

The spelling of 190870557 in words is "one hundred ninety million, eight hundred seventy thousand, five hundred fifty-seven".