133402052 has 24 divisors (see below), whose sum is σ = 275412480. Its totient is φ = 55327680.

The previous prime is 133402019. The next prime is 133402079. The reversal of 133402052 is 250204331.

It is a happy number.

It is a super-2 number, since 2×133402052² = 35592214955621408, which contains 22 as substring.

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, 75977 + ... + 77712.

It is an arithmetic number, because the mean of its divisors is an integer number (11475520).

Almost surely, 2^133402052 is an apocalyptic number.

It is an amenable number.

133402052 is an abundant number, since it is smaller than the sum of its proper divisors (142010428).

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

133402052 is a wasteful number, since it uses less digits than its factorization.

133402052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153731 (or 153729 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 133402052 is about 11549.9806060443. The cubic root of 133402052 is about 510.9607061261.

Adding to 133402052 its reverse (250204331), we get a palindrome (383606383).

The spelling of 133402052 in words is "one hundred thirty-three million, four hundred two thousand, fifty-two".