136638622 has 12 divisors (see below), whose sum is σ = 217724400. Its totient is φ = 64300256.

The previous prime is 136638617. The next prime is 136638629. The reversal of 136638622 is 226836631.

It is a super-2 number, since 2×136638622² = 37340226044117768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136638629) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117622 + ... + 118777.

It is an arithmetic number, because the mean of its divisors is an integer number (18143700).

Almost surely, 2^136638622 is an apocalyptic number.

136638622 is a deficient number, since it is larger than the sum of its proper divisors (81085778).

136638622 is a wasteful number, since it uses less digits than its factorization.

136638622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236435 (or 236418 counting only the distinct ones).

The product of its digits is 62208, while the sum is 37.

The square root of 136638622 is about 11689.2524140768. The cubic root of 136638622 is about 515.0600011783.

The spelling of 136638622 in words is "one hundred thirty-six million, six hundred thirty-eight thousand, six hundred twenty-two".