133590540 has 24 divisors (see below), whose sum is σ = 374053680. Its totient is φ = 35624128.

The previous prime is 133590533. The next prime is 133590553. The reversal of 133590540 is 45095331.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 133590498 and 133590507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1113195 + ... + 1113314.

It is an arithmetic number, because the mean of its divisors is an integer number (15585570).

Almost surely, 2^133590540 is an apocalyptic number.

133590540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133590540 is an abundant number, since it is smaller than the sum of its proper divisors (240463140).

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

133590540 is a wasteful number, since it uses less digits than its factorization.

133590540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226521 (or 2226519 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 133590540 is about 11558.1373931962. The cubic root of 133590540 is about 511.2012437488.

The spelling of 133590540 in words is "one hundred thirty-three million, five hundred ninety thousand, five hundred forty".