136860249 has 16 divisors (see below), whose sum is σ = 192456000. Its totient is φ = 86270976.

The previous prime is 136860167. The next prime is 136860253. The reversal of 136860249 is 942068631.

It is not a de Polignac number, because 136860249 - 2⁷ = 136860121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136860259) 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, 31777 + ... + 35825.

It is an arithmetic number, because the mean of its divisors is an integer number (12028500).

Almost surely, 2^136860249 is an apocalyptic number.

136860249 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

136860249 is a deficient number, since it is larger than the sum of its proper divisors (55595751).

136860249 is a wasteful number, since it uses less digits than its factorization.

136860249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4664.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 136860249 is about 11698.7285206556. The cubic root of 136860249 is about 515.3383254648.

The spelling of 136860249 in words is "one hundred thirty-six million, eight hundred sixty thousand, two hundred forty-nine".