190557745 has 16 divisors (see below), whose sum is σ = 275091840. Its totient is φ = 123790464.

The previous prime is 190557727. The next prime is 190557749. The reversal of 190557745 is 547755091.

It is not a de Polignac number, because 190557745 - 2⁷ = 190557617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (190557749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142612 + ... + 143941.

It is an arithmetic number, because the mean of its divisors is an integer number (17193240).

Almost surely, 2^190557745 is an apocalyptic number.

It is an amenable number.

190557745 is a deficient number, since it is larger than the sum of its proper divisors (84534095).

190557745 is a wasteful number, since it uses less digits than its factorization.

190557745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286584.

The product of its (nonzero) digits is 220500, while the sum is 43.

The square root of 190557745 is about 13804.2654639789. The cubic root of 190557745 is about 575.4516879344.

The spelling of 190557745 in words is "one hundred ninety million, five hundred fifty-seven thousand, seven hundred forty-five".