135311651 has 4 divisors (see below), whose sum is σ = 139977600. Its totient is φ = 130645704.

The previous prime is 135311641. The next prime is 135311677. The reversal of 135311651 is 156113531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 156113531 = 7 ⋅22301933.

It is a cyclic number.

It is not a de Polignac number, because 135311651 - 2²⁶ = 68202787 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135311651.

It is not an unprimeable number, because it can be changed into a prime (135311641) 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, 2332931 + ... + 2332988.

It is an arithmetic number, because the mean of its divisors is an integer number (34994400).

Almost surely, 2^135311651 is an apocalyptic number.

135311651 is a deficient number, since it is larger than the sum of its proper divisors (4665949).

135311651 is an equidigital number, since it uses as much as digits as its factorization.

135311651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4665948.

The product of its digits is 1350, while the sum is 26.

The square root of 135311651 is about 11632.3536311445. The cubic root of 135311651 is about 513.3872330072.

The spelling of 135311651 in words is "one hundred thirty-five million, three hundred eleven thousand, six hundred fifty-one".