133545402 has 16 divisors (see below), whose sum is σ = 296767680. Its totient is φ = 44515116.

The previous prime is 133545389. The next prime is 133545413. The reversal of 133545402 is 204545331.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 1236478 + ... + 1236585.

It is an arithmetic number, because the mean of its divisors is an integer number (18547980).

Almost surely, 2^133545402 is an apocalyptic number.

133545402 is an abundant number, since it is smaller than the sum of its proper divisors (163222278).

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

133545402 is a wasteful number, since it uses less digits than its factorization.

133545402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2473074 (or 2473068 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 133545402 is about 11556.1845779652. The cubic root of 133545402 is about 511.1436618246.

The spelling of 133545402 in words is "one hundred thirty-three million, five hundred forty-five thousand, four hundred two".