1172358390025 has 9 divisors (see below), whose sum is σ = 1453731116743. Its totient is φ = 937882381000.

The previous prime is 1172358389981. The next prime is 1172358390103. The reversal of 1172358390025 is 5200938532711.

The square root of 1172358390025 is 1082755.

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., 422049020409 + 750309369616 = 649653^2 + 866204^2 .

It is not a de Polignac number, because 1172358390025 - 2¹³ = 1172358381833 is a prime.

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, 5305500 + ... + 5522050.

Almost surely, 2^{1172358390025} is an apocalyptic number.

1172358390025 is the 1082755-th square number.

1172358390025 is the 541378-th centered octagonal number.

It is an amenable number.

1172358390025 is a deficient number, since it is larger than the sum of its proper divisors (281372726718).

1172358390025 is an frugal number, since it uses more digits than its factorization.

1172358390025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433112 (or 216556 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 1172358390025 in words is "one trillion, one hundred seventy-two billion, three hundred fifty-eight million, three hundred ninety thousand, twenty-five".