122940686 has 16 divisors (see below), whose sum is σ = 208113840. Its totient is φ = 53954880.

The previous prime is 122940667. The next prime is 122940691. The reversal of 122940686 is 686049221.

It is a super-2 number, since 2×122940686² = 30228824548301192, 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, 95711 + ... + 96986.

It is an arithmetic number, because the mean of its divisors is an integer number (13007115).

Almost surely, 2^122940686 is an apocalyptic number.

122940686 is a deficient number, since it is larger than the sum of its proper divisors (85173154).

122940686 is a wasteful number, since it uses less digits than its factorization.

122940686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192739.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 122940686 is about 11087.8621023171. The cubic root of 122940686 is about 497.2390301533.

The spelling of 122940686 in words is "one hundred twenty-two million, nine hundred forty thousand, six hundred eighty-six".