124691964 has 12 divisors (see below), whose sum is σ = 290947944. Its totient is φ = 41563984.

The previous prime is 124691953. The next prime is 124691969. The reversal of 124691964 is 469196421.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124691969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5195487 + ... + 5195510.

It is an arithmetic number, because the mean of its divisors is an integer number (24245662).

Almost surely, 2^124691964 is an apocalyptic number.

It is an amenable number.

124691964 is an abundant number, since it is smaller than the sum of its proper divisors (166255980).

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

124691964 is a wasteful number, since it uses less digits than its factorization.

124691964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10391004 (or 10391002 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The square root of 124691964 is about 11166.5556014377. Note that the first 3 decimals coincide. The cubic root of 124691964 is about 499.5889474976.

The spelling of 124691964 in words is "one hundred twenty-four million, six hundred ninety-one thousand, nine hundred sixty-four".