124421997 has 32 divisors (see below), whose sum is σ = 202874112. Its totient is φ = 66207744.

The previous prime is 124421993. The next prime is 124422007. The reversal of 124421997 is 799124421.

It is not a de Polignac number, because 124421997 - 2² = 124421993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124421993) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32833 + ... + 36425.

It is an arithmetic number, because the mean of its divisors is an integer number (6339816).

Almost surely, 2^124421997 is an apocalyptic number.

124421997 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

124421997 is a deficient number, since it is larger than the sum of its proper divisors (78452115).

124421997 is a wasteful number, since it uses less digits than its factorization.

124421997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3717.

The product of its digits is 36288, while the sum is 39.

The square root of 124421997 is about 11154.4608565363. The cubic root of 124421997 is about 499.2281384058.

The spelling of 124421997 in words is "one hundred twenty-four million, four hundred twenty-one thousand, nine hundred ninety-seven".