190211057 has 8 divisors (see below), whose sum is σ = 194245536. Its totient is φ = 186211872.

The previous prime is 190211053. The next prime is 190211069. The reversal of 190211057 is 750112091.

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 190211057 - 2² = 190211053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190211053) 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, 2213 + ... + 19629.

It is an arithmetic number, because the mean of its divisors is an integer number (24280692).

Almost surely, 2^190211057 is an apocalyptic number.

It is an amenable number.

190211057 is a deficient number, since it is larger than the sum of its proper divisors (4034479).

190211057 is a wasteful number, since it uses less digits than its factorization.

190211057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17647.

The product of its (nonzero) digits is 630, while the sum is 26.

The square root of 190211057 is about 13791.7024692385. The cubic root of 190211057 is about 575.1024966622.

The spelling of 190211057 in words is "one hundred ninety million, two hundred eleven thousand, fifty-seven".