133402042 has 8 divisors (see below), whose sum is σ = 202921632. Its totient is φ = 65761500.

The previous prime is 133402019. The next prime is 133402079. The reversal of 133402042 is 240204331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×133402042² = 35592209619539528, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469584 + ... + 469867.

It is an arithmetic number, because the mean of its divisors is an integer number (25365204).

Almost surely, 2^133402042 is an apocalyptic number.

133402042 is a deficient number, since it is larger than the sum of its proper divisors (69519590).

133402042 is an equidigital number, since it uses as much as digits as its factorization.

133402042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939524.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 133402042 is about 11549.9801731432. The cubic root of 133402042 is about 510.9606933587.

Adding to 133402042 its reverse (240204331), we get a palindrome (373606373).

The spelling of 133402042 in words is "one hundred thirty-three million, four hundred two thousand, forty-two".