136630740 has 24 divisors (see below), whose sum is σ = 382566240. Its totient is φ = 36434848.

The previous prime is 136630727. The next prime is 136630757. The reversal of 136630740 is 47036631.

It is a super-2 number, since 2×136630740² = 37335918225895200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 136630698 and 136630707.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1138530 + ... + 1138649.

It is an arithmetic number, because the mean of its divisors is an integer number (15940260).

Almost surely, 2^136630740 is an apocalyptic number.

136630740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136630740 is an abundant number, since it is smaller than the sum of its proper divisors (245935500).

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

136630740 is a wasteful number, since it uses less digits than its factorization.

136630740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277191 (or 2277189 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 136630740 is about 11688.9152619052. The cubic root of 136630740 is about 515.0500972411.

The spelling of 136630740 in words is "one hundred thirty-six million, six hundred thirty thousand, seven hundred forty".