1237489380625 has 15 divisors (see below), whose sum is σ = 1546401482967. Its totient is φ = 989969256000.

The previous prime is 1237489380619. The next prime is 1237489380629. The reversal of 1237489380625 is 5260839847321.

It is a happy number.

The square root of 1237489380625 is 1112425.

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

It can be written as a sum of positive squares in 7 ways, for example, as 759698762449 + 477790618176 = 871607^2 + 691224^2 .

It is not a de Polignac number, because 1237489380625 - 2⁵ = 1237489380593 is a prime.

It is a super-2 number, since 2×1237489380625² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1237489380625.

It is not an unprimeable number, because it can be changed into a prime (1237489380629) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 27788377 + ... + 27832873.

It is a 1-persistent number, because it is pandigital, but 2⋅1237489380625 = 2474978761250 is not.

Almost surely, 2^{1237489380625} is an apocalyptic number.

1237489380625 is the 1112425-th square number.

1237489380625 is the 556213-rd centered octagonal number.

It is an amenable number.

1237489380625 is a deficient number, since it is larger than the sum of its proper divisors (308912102342).

1237489380625 is an frugal number, since it uses more digits than its factorization.

1237489380625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89014 (or 44502 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 58.

The spelling of 1237489380625 in words is "one trillion, two hundred thirty-seven billion, four hundred eighty-nine million, three hundred eighty thousand, six hundred twenty-five".