136722870 has 32 divisors (see below), whose sum is σ = 364595040. Its totient is φ = 36459360.

The previous prime is 136722869. The next prime is 136722889. The reversal of 136722870 is 78227631.

136722870 is a `hidden beast` number, since 1 + 367 + 228 + 70 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252921 + ... + 253460.

It is an arithmetic number, because the mean of its divisors is an integer number (11393595).

Almost surely, 2^136722870 is an apocalyptic number.

136722870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136722870 is an abundant number, since it is smaller than the sum of its proper divisors (227872170).

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

136722870 is a wasteful number, since it uses less digits than its factorization.

136722870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506397 (or 506391 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 136722870 is about 11692.8555109520. The cubic root of 136722870 is about 515.1658371884.

The spelling of 136722870 in words is "one hundred thirty-six million, seven hundred twenty-two thousand, eight hundred seventy".