133252031 has 8 divisors (see below), whose sum is σ = 147830400. Its totient is φ = 119084440.

The previous prime is 133251991. The next prime is 133252037. The reversal of 133252031 is 130252331.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133252031 is a prime.

It is a super-2 number, since 2×133252031² = 35512207531249922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133251994 and 133252012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133252037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102011 + ... + 103308.

It is an arithmetic number, because the mean of its divisors is an integer number (18478800).

Almost surely, 2^133252031 is an apocalyptic number.

133252031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133252031 is a deficient number, since it is larger than the sum of its proper divisors (14578369).

133252031 is a wasteful number, since it uses less digits than its factorization.

133252031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205389.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 133252031 is about 11543.4843526554. The cubic root of 133252031 is about 510.7690959080.

The spelling of 133252031 in words is "one hundred thirty-three million, two hundred fifty-two thousand, thirty-one".