133590474 has 12 divisors (see below), whose sum is σ = 289446066. Its totient is φ = 44530152.

The previous prime is 133590473. The next prime is 133590493. The reversal of 133590474 is 474095331.

133590474 is a `hidden beast` number, since 133 + 59 + 0 + 474 = 666.

It can be written as a sum of positive squares in only one way, i.e., 132365025 + 1225449 = 11505^2 + 1107^2 .

It is a super-3 number, since 3×133590474³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (133590473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3710829 + ... + 3710864.

Almost surely, 2^133590474 is an apocalyptic number.

133590474 is an abundant number, since it is smaller than the sum of its proper divisors (155855592).

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

133590474 is a wasteful number, since it uses less digits than its factorization.

133590474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7421701 (or 7421698 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 133590474 is about 11558.1345380645. The cubic root of 133590474 is about 511.2011595630.

It can be divided in two parts, 1335 and 90474, that added together give a square (91809 = 303²).

The spelling of 133590474 in words is "one hundred thirty-three million, five hundred ninety thousand, four hundred seventy-four".