133013031 has 16 divisors (see below), whose sum is σ = 179189760. Its totient is φ = 87760800.

The previous prime is 133013029. The next prime is 133013051. The reversal of 133013031 is 130310331.

It is not a de Polignac number, because 133013031 - 2¹ = 133013029 is a prime.

It is a super-2 number, since 2×133013031² = 35384932831613922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 133013031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133013051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216681 + ... + 217293.

It is an arithmetic number, because the mean of its divisors is an integer number (11199360).

Almost surely, 2^133013031 is an apocalyptic number.

133013031 is a deficient number, since it is larger than the sum of its proper divisors (46176729).

133013031 is a wasteful number, since it uses less digits than its factorization.

133013031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246.

The product of its (nonzero) digits is 81, while the sum is 15.

The square root of 133013031 is about 11533.1275463336. The cubic root of 133013031 is about 510.4635424156.

Adding to 133013031 its reverse (130310331), we get a palindrome (263323362).

The spelling of 133013031 in words is "one hundred thirty-three million, thirteen thousand, thirty-one".