136143421531 has 8 divisors (see below), whose sum is σ = 152990601120. Its totient is φ = 120206900352.

The previous prime is 136143421493. The next prime is 136143421567. The reversal of 136143421531 is 135124341631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136143421531 - 2¹³ = 136143413339 is a prime.

It is a super-2 number, since 2×136143421531² (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 (136143421331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227664286 + ... + 227664883.

It is an arithmetic number, because the mean of its divisors is an integer number (19123825140).

Almost surely, 2^136143421531 is an apocalyptic number.

136143421531 is a deficient number, since it is larger than the sum of its proper divisors (16847179589).

136143421531 is a wasteful number, since it uses less digits than its factorization.

136143421531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455329205.

The product of its digits is 25920, while the sum is 34.

The spelling of 136143421531 in words is "one hundred thirty-six billion, one hundred forty-three million, four hundred twenty-one thousand, five hundred thirty-one".