136248940 has 24 divisors (see below), whose sum is σ = 292778640. Its totient is φ = 53231808.

The previous prime is 136248913. The next prime is 136248947. The reversal of 136248940 is 49842631.

It is a super-2 number, since 2×136248940² = 37127547302247200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 136248940.

It is not an unprimeable number, because it can be changed into a prime (136248947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78355 + ... + 80074.

It is an arithmetic number, because the mean of its divisors is an integer number (12199110).

Almost surely, 2^136248940 is an apocalyptic number.

136248940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136248940 is an abundant number, since it is smaller than the sum of its proper divisors (156529700).

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

136248940 is a wasteful number, since it uses less digits than its factorization.

136248940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158481 (or 158479 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 136248940 is about 11672.5721244291. The cubic root of 136248940 is about 514.5698988590.

The spelling of 136248940 in words is "one hundred thirty-six million, two hundred forty-eight thousand, nine hundred forty".