135044969431 has 2 divisors, whose sum is σ = 135044969432. Its totient is φ = 135044969430.

The previous prime is 135044969419. The next prime is 135044969459. The reversal of 135044969431 is 134969440531.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135044969431 - 2⁷ = 135044969303 is a prime.

It is a super-2 number, since 2×135044969431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135044969401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67522484715 + 67522484716.

It is an arithmetic number, because the mean of its divisors is an integer number (67522484716).

Almost surely, 2^135044969431 is an apocalyptic number.

135044969431 is a deficient number, since it is larger than the sum of its proper divisors (1).

135044969431 is an equidigital number, since it uses as much as digits as its factorization.

135044969431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1399680, while the sum is 49.

The spelling of 135044969431 in words is "one hundred thirty-five billion, forty-four million, nine hundred sixty-nine thousand, four hundred thirty-one".