1120813929225 has 81 divisors (see below), whose sum is σ = 2024569460277. Its totient is φ = 592728088320.

The previous prime is 1120813929211. The next prime is 1120813929229. The reversal of 1120813929225 is 5229293180211.

The square root of 1120813929225 is 1058685.

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

1120813929225 is a `hidden beast` number, since 1 + 1 + 208 + 139 + 292 + 25 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 342614720889 + 778199208336 = 585333^2 + 882156^2 .

It is not a de Polignac number, because 1120813929225 - 2³³ = 1112223994633 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1120813929229) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 2588484609 + ... + 2588485041.

Almost surely, 2^{1120813929225} is an apocalyptic number.

1120813929225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1120813929225 is the 1058685-th square number.

1120813929225 is the 529343-rd centered octagonal number.

It is an amenable number.

1120813929225 is a deficient number, since it is larger than the sum of its proper divisors (903755531052).

1120813929225 is an frugal number, since it uses more digits than its factorization.

1120813929225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 1120813929225 in words is "one trillion, one hundred twenty billion, eight hundred thirteen million, nine hundred twenty-nine thousand, two hundred twenty-five".