1237984225 has 27 divisors (see below), whose sum is σ = 1593235731. Its totient is φ = 954217200.

The previous prime is 1237984213. The next prime is 1237984243. The reversal of 1237984225 is 5224897321.

The square root of 1237984225 is 35185.

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., 445674321 + 792309904 = 21111^2 + 28148^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1237984225 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5453562 + ... + 5453788.

Almost surely, 2^1237984225 is an apocalyptic number.

1237984225 is the 35185-th square number.

1237984225 is the 17593-rd centered octagonal number.

It is an amenable number.

1237984225 is a deficient number, since it is larger than the sum of its proper divisors (355251506).

1237984225 is an frugal number, since it uses more digits than its factorization.

1237984225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 263 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The cubic root of 1237984225 is about 1073.7545988474.

The spelling of 1237984225 in words is "one billion, two hundred thirty-seven million, nine hundred eighty-four thousand, two hundred twenty-five".