124621002289 has 81 divisors (see below), whose sum is σ = 157658963553. Its totient is φ = 98212153536.

The previous prime is 124621002257. The next prime is 124621002307. The reversal of 124621002289 is 982200126421.

The square root of 124621002289 is 353017.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 26521751025 + 98099251264 = 162855^2 + 313208^2 .

It is not a de Polignac number, because 124621002289 - 2⁵ = 124621002257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (124621002089) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 2651510664 + ... + 2651510710.

Almost surely, 2^124621002289 is an apocalyptic number.

124621002289 is the 353017-th square number.

124621002289 is the 176509-th centered octagonal number.

It is an amenable number.

124621002289 is a deficient number, since it is larger than the sum of its proper divisors (33037961264).

124621002289 is an frugal number, since it uses more digits than its factorization.

124621002289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 120 counting only the distinct ones).

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

The spelling of 124621002289 in words is "one hundred twenty-four billion, six hundred twenty-one million, two thousand, two hundred eighty-nine".