133452131 has 4 divisors (see below), whose sum is σ = 135060072. Its totient is φ = 131844192.

The previous prime is 133452127. The next prime is 133452149. The reversal of 133452131 is 131254331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133452131 - 2² = 133452127 is a prime.

It is a super-2 number, since 2×133452131² = 35618942536882322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133452097 and 133452106.

It is not an unprimeable number, because it can be changed into a prime (133452191) 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, 803846 + ... + 804011.

It is an arithmetic number, because the mean of its divisors is an integer number (33765018).

Almost surely, 2^133452131 is an apocalyptic number.

133452131 is a deficient number, since it is larger than the sum of its proper divisors (1607941).

133452131 is an equidigital number, since it uses as much as digits as its factorization.

133452131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607940.

The product of its digits is 1080, while the sum is 23.

The square root of 133452131 is about 11552.1483283414. The cubic root of 133452131 is about 511.0246361770.

The spelling of 133452131 in words is "one hundred thirty-three million, four hundred fifty-two thousand, one hundred thirty-one".