122621764 has 24 divisors (see below), whose sum is σ = 217346976. Its totient is φ = 60528000.

The previous prime is 122621761. The next prime is 122621789. The reversal of 122621764 is 467126221.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (122621761) 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, 125799 + ... + 126769.

It is an arithmetic number, because the mean of its divisors is an integer number (9056124).

Almost surely, 2^122621764 is an apocalyptic number.

It is an amenable number.

122621764 is a deficient number, since it is larger than the sum of its proper divisors (94725212).

122621764 is a wasteful number, since it uses less digits than its factorization.

122621764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347 (or 1345 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 122621764 is about 11073.4711811609. The cubic root of 122621764 is about 496.8086931231.

Adding to 122621764 its reverse (467126221), we get a palindrome (589747985).

The spelling of 122621764 in words is "one hundred twenty-two million, six hundred twenty-one thousand, seven hundred sixty-four".