133013651 has 4 divisors (see below), whose sum is σ = 133039704. Its totient is φ = 132987600.

The previous prime is 133013599. The next prime is 133013689. The reversal of 133013651 is 156310331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 156310331 = 83 ⋅1883257.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133013651 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 2570 + ... + 16511.

It is an arithmetic number, because the mean of its divisors is an integer number (33259926).

Almost surely, 2^133013651 is an apocalyptic number.

133013651 is a deficient number, since it is larger than the sum of its proper divisors (26053).

133013651 is an equidigital number, since it uses as much as digits as its factorization.

133013651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26052.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 133013651 is about 11533.1544253946. The cubic root of 133013651 is about 510.4643355382.

Adding to 133013651 its reverse (156310331), we get a palindrome (289323982).

The spelling of 133013651 in words is "one hundred thirty-three million, thirteen thousand, six hundred fifty-one".