133402049 has 4 divisors (see below), whose sum is σ = 145529520. Its totient is φ = 121274580.

The previous prime is 133402019. The next prime is 133402079. The reversal of 133402049 is 940204331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (133402019) and next prime (133402079).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133402049 is a prime.

It is a super-2 number, since 2×133402049² = 35592213354796802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133402019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6063719 + ... + 6063740.

It is an arithmetic number, because the mean of its divisors is an integer number (36382380).

Almost surely, 2^133402049 is an apocalyptic number.

It is an amenable number.

133402049 is a deficient number, since it is larger than the sum of its proper divisors (12127471).

133402049 is a wasteful number, since it uses less digits than its factorization.

133402049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12127470.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 133402049 is about 11549.9804761740. The cubic root of 133402049 is about 510.9607022959.

The spelling of 133402049 in words is "one hundred thirty-three million, four hundred two thousand, forty-nine".