133122402 has 48 divisors (see below), whose sum is σ = 330999552. Its totient is φ = 37877760.

The previous prime is 133122397. The next prime is 133122433. The reversal of 133122402 is 204221331.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30327 + ... + 34437.

It is an arithmetic number, because the mean of its divisors is an integer number (6895824).

Almost surely, 2^133122402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133122402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165499776).

133122402 is an abundant number, since it is smaller than the sum of its proper divisors (197877150).

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

133122402 is a wasteful number, since it uses less digits than its factorization.

133122402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4383 (or 4380 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 133122402 is about 11537.8681739739. The cubic root of 133122402 is about 510.6034149591.

Adding to 133122402 its reverse (204221331), we get a palindrome (337343733).

The spelling of 133122402 in words is "one hundred thirty-three million, one hundred twenty-two thousand, four hundred two".