190045557 has 12 divisors (see below), whose sum is σ = 295626604. Its totient is φ = 116951040.

The previous prime is 190045523. The next prime is 190045577. The reversal of 190045557 is 755540091.

It can be written as a sum of positive squares in 2 ways, for example, as 10458756 + 179586801 = 3234^2 + 13401^2 .

It is not a de Polignac number, because 190045557 - 2¹¹ = 190043509 is a prime.

It is a super-2 number, since 2×190045557² = 72234627470880498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190045577) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 812044 + ... + 812277.

Almost surely, 2^190045557 is an apocalyptic number.

It is an amenable number.

190045557 is a deficient number, since it is larger than the sum of its proper divisors (105581047).

190045557 is a wasteful number, since it uses less digits than its factorization.

190045557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624340 (or 1624337 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 190045557 is about 13785.7011791203. The cubic root of 190045557 is about 574.9356520304.

The spelling of 190045557 in words is "one hundred ninety million, forty-five thousand, five hundred fifty-seven".