124821964 has 6 divisors (see below), whose sum is σ = 218438444. Its totient is φ = 62410980.

The previous prime is 124821937. The next prime is 124821967. The reversal of 124821964 is 469128421.

It is not an unprimeable number, because it can be changed into a prime (124821967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15602742 + ... + 15602749.

Almost surely, 2^124821964 is an apocalyptic number.

It is an amenable number.

124821964 is a deficient number, since it is larger than the sum of its proper divisors (93616480).

124821964 is a wasteful number, since it uses less digits than its factorization.

124821964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31205495 (or 31205493 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 124821964 is about 11172.3750384598. The cubic root of 124821964 is about 499.7625058776.

The spelling of 124821964 in words is "one hundred twenty-four million, eight hundred twenty-one thousand, nine hundred sixty-four".