135992412381 has 16 divisors (see below), whose sum is σ = 208717376000. Its totient is φ = 77150883888.

The previous prime is 135992412377. The next prime is 135992412421. The reversal of 135992412381 is 183214299531.

It is not a de Polignac number, because 135992412381 - 2² = 135992412377 is a prime.

It is a super-2 number, since 2×135992412381² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135992412381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135992412301) 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, 23291431 + ... + 23297268.

It is an arithmetic number, because the mean of its divisors is an integer number (13044836000).

Almost surely, 2^135992412381 is an apocalyptic number.

It is an amenable number.

135992412381 is a deficient number, since it is larger than the sum of its proper divisors (72724963619).

135992412381 is a wasteful number, since it uses less digits than its factorization.

135992412381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46588848.

The product of its digits is 466560, while the sum is 48.

The spelling of 135992412381 in words is "one hundred thirty-five billion, nine hundred ninety-two million, four hundred twelve thousand, three hundred eighty-one".