133552031 has 4 divisors (see below), whose sum is σ = 133575864. Its totient is φ = 133528200.

The previous prime is 133551973. The next prime is 133552039. The reversal of 133552031 is 130255331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130255331 = 601 ⋅216731.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133552031 is a prime.

It is a super-2 number, since 2×133552031² = 35672289968449922, 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 = 133551988 and 133552006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133552039) 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, 1601 + ... + 16421.

It is an arithmetic number, because the mean of its divisors is an integer number (33393966).

Almost surely, 2^133552031 is an apocalyptic number.

133552031 is a deficient number, since it is larger than the sum of its proper divisors (23833).

133552031 is an equidigital number, since it uses as much as digits as its factorization.

133552031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23832.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 133552031 is about 11556.4713905240. The cubic root of 133552031 is about 511.1521191612.

The spelling of 133552031 in words is "one hundred thirty-three million, five hundred fifty-two thousand, thirty-one".