601191090 has 24 divisors (see below), whose sum is σ = 1563097068. Its totient is φ = 160317600.

The previous prime is 601191037. The next prime is 601191167. The reversal of 601191090 is 90191106.

It can be written as a sum of positive squares in 2 ways, for example, as 579316761 + 21874329 = 24069^2 + 4677^2 .

It is a super-2 number, since 2×601191090² = 722861453390776200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3339861 + ... + 3340040.

Almost surely, 2^601191090 is an apocalyptic number.

601191090 is an abundant number, since it is smaller than the sum of its proper divisors (961905978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

601191090 is a wasteful number, since it uses less digits than its factorization.

601191090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6679914 (or 6679911 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The square root of 601191090 is about 24519.1983963587. The cubic root of 601191090 is about 843.9904098474.

The spelling of 601191090 in words is "six hundred one million, one hundred ninety-one thousand, ninety".