136845378 has 12 divisors (see below), whose sum is σ = 296498358. Its totient is φ = 45615120.

The previous prime is 136845347. The next prime is 136845389. The reversal of 136845378 is 873548631.

136845378 is a `hidden beast` number, since 1 + 36 + 84 + 537 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 129891609 + 6953769 = 11397^2 + 2637^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3801243 + ... + 3801278.

Almost surely, 2^136845378 is an apocalyptic number.

136845378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

136845378 is an abundant number, since it is smaller than the sum of its proper divisors (159652980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136845378 is a wasteful number, since it uses less digits than its factorization.

136845378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7602529 (or 7602526 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 136845378 is about 11698.0929214979. The cubic root of 136845378 is about 515.3196595291.

The spelling of 136845378 in words is "one hundred thirty-six million, eight hundred forty-five thousand, three hundred seventy-eight".