135954737731 has 16 divisors (see below), whose sum is σ = 142366076928. Its totient is φ = 129671287200.

The previous prime is 135954737717. The next prime is 135954737761. The reversal of 135954737731 is 137737459531.

It is a cyclic number.

It is not a de Polignac number, because 135954737731 - 2⁷ = 135954737603 is a prime.

It is a super-2 number, since 2×135954737731² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135954737701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7613145 + ... + 7630981.

It is an arithmetic number, because the mean of its divisors is an integer number (8897879808).

Almost surely, 2^135954737731 is an apocalyptic number.

135954737731 is a deficient number, since it is larger than the sum of its proper divisors (6411339197).

135954737731 is a wasteful number, since it uses less digits than its factorization.

135954737731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21402.

The product of its digits is 8334900, while the sum is 55.

The spelling of 135954737731 in words is "one hundred thirty-five billion, nine hundred fifty-four million, seven hundred thirty-seven thousand, seven hundred thirty-one".