136213880 has 32 divisors (see below), whose sum is σ = 334344240. Its totient is φ = 49532160.

The previous prime is 136213871. The next prime is 136213951. The reversal of 136213880 is 88312631.

It is a happy number.

136213880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×136213880² = 37108442209308800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154349 + ... + 155228.

Almost surely, 2^136213880 is an apocalyptic number.

136213880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136213880 is an abundant number, since it is smaller than the sum of its proper divisors (198130360).

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

136213880 is a wasteful number, since it uses less digits than its factorization.

136213880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309599 (or 309595 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 136213880 is about 11671.0702165654. The cubic root of 136213880 is about 514.5257581650.

The spelling of 136213880 in words is "one hundred thirty-six million, two hundred thirteen thousand, eight hundred eighty".