1237355893225 has 27 divisors (see below), whose sum is σ = 1541005545207. Its totient is φ = 985590985680.

The previous prime is 1237355893211. The next prime is 1237355893273. The reversal of 1237355893225 is 5223985537321.

The square root of 1237355893225 is 1112365.

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., 445448121561 + 791907771664 = 667419^2 + 889892^2 .

It is not a de Polignac number, because 1237355893225 - 2¹⁵ = 1237355860457 is a prime.

It is a Duffinian number.

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, 2107931382 + ... + 2107931968.

Almost surely, 2^{1237355893225} is an apocalyptic number.

1237355893225 is the 1112365-th square number.

1237355893225 is the 556183-rd centered octagonal number.

It is an amenable number.

1237355893225 is a deficient number, since it is larger than the sum of its proper divisors (303649651982).

1237355893225 is an frugal number, since it uses more digits than its factorization.

1237355893225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1942 (or 971 counting only the distinct ones).

The product of its digits is 13608000, while the sum is 55.

The spelling of 1237355893225 in words is "one trillion, two hundred thirty-seven billion, three hundred fifty-five million, eight hundred ninety-three thousand, two hundred twenty-five".