136389465 has 24 divisors (see below), whose sum is σ = 244562760. Its totient is φ = 70232064.

The previous prime is 136389439. The next prime is 136389499. The reversal of 136389465 is 564983631.

136389465 is a `hidden beast` number, since 1 + 3 + 638 + 9 + 4 + 6 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1527696 + 134861769 = 1236^2 + 11613^2 .

It is not a de Polignac number, because 136389465 - 2¹² = 136385369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 136389465.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50952 + ... + 53561.

It is an arithmetic number, because the mean of its divisors is an integer number (10190115).

Almost surely, 2^136389465 is an apocalyptic number.

136389465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136389465 is a deficient number, since it is larger than the sum of its proper divisors (108173295).

136389465 is a wasteful number, since it uses less digits than its factorization.

136389465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104553 (or 104550 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 136389465 is about 11678.5900261975. The cubic root of 136389465 is about 514.7467444905.

The spelling of 136389465 in words is "one hundred thirty-six million, three hundred eighty-nine thousand, four hundred sixty-five".