124831489225 has 9 divisors (see below), whose sum is σ = 154793237223. Its totient is φ = 99863778120.

The previous prime is 124831489199. The next prime is 124831489241. The reversal of 124831489225 is 522984138421.

The square root of 124831489225 is 353315.

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

It can be written as a sum of positive squares in only one way, i.e., 44939336121 + 79892153104 = 211989^2 + 282652^2 .

It is not a de Polignac number, because 124831489225 - 2¹⁵ = 124831456457 is a prime.

It is a super-2 number, since 2×124831489225² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1731244 + ... + 1801906.

Almost surely, 2^124831489225 is an apocalyptic number.

124831489225 is the 353315-th square number.

124831489225 is the 176658-th centered octagonal number.

It is an amenable number.

124831489225 is a deficient number, since it is larger than the sum of its proper divisors (29961747998).

124831489225 is an frugal number, since it uses more digits than its factorization.

124831489225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141336 (or 70668 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 49.

Multiplying 124831489225 by its sum of digits (49), we get a square (6116742972025 = 2473205²).

The spelling of 124831489225 in words is "one hundred twenty-four billion, eight hundred thirty-one million, four hundred eighty-nine thousand, two hundred twenty-five".