136789215 has 16 divisors (see below), whose sum is σ = 219392736. Its totient is φ = 72777600.

The previous prime is 136789207. The next prime is 136789241. The reversal of 136789215 is 512987631.

It is not a de Polignac number, because 136789215 - 2³ = 136789207 is a prime.

It is a super-2 number, since 2×136789215² = 37422578680632450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4516 + ... + 17145.

It is an arithmetic number, because the mean of its divisors is an integer number (13712046).

Almost surely, 2^136789215 is an apocalyptic number.

136789215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

136789215 is a deficient number, since it is larger than the sum of its proper divisors (82603521).

136789215 is a wasteful number, since it uses less digits than its factorization.

136789215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22090.

The product of its digits is 90720, while the sum is 42.

The square root of 136789215 is about 11695.6921556614. The cubic root of 136789215 is about 515.2491520733.

The spelling of 136789215 in words is "one hundred thirty-six million, seven hundred eighty-nine thousand, two hundred fifteen".