136397243519 has 8 divisors (see below), whose sum is σ = 140088794208. Its totient is φ = 132705963360.

The previous prime is 136397243513. The next prime is 136397243557. The reversal of 136397243519 is 915342793631.

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 136397243519 - 2⁴ = 136397243503 is a prime.

It is a super-2 number, since 2×136397243519² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136397243513) 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, 1352174 + ... + 1449540.

It is an arithmetic number, because the mean of its divisors is an integer number (17511099276).

Almost surely, 2^136397243519 is an apocalyptic number.

136397243519 is a deficient number, since it is larger than the sum of its proper divisors (3691550689).

136397243519 is an equidigital number, since it uses as much as digits as its factorization.

136397243519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135265.

The product of its digits is 3674160, while the sum is 53.

The spelling of 136397243519 in words is "one hundred thirty-six billion, three hundred ninety-seven million, two hundred forty-three thousand, five hundred nineteen".