1121597460 has 36 divisors (see below), whose sum is σ = 3402179508. Its totient is φ = 299092608.

The previous prime is 1121597447. The next prime is 1121597473. The reversal of 1121597460 is 647951211.

1121597460 is a `hidden beast` number, since 1 + 1 + 2 + 1 + 597 + 4 + 60 = 666.

It is an interprime number because it is at equal distance from previous prime (1121597447) and next prime (1121597473).

It can be written as a sum of positive squares in 2 ways, for example, as 240932484 + 880664976 = 15522^2 + 29676^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3115369 + ... + 3115728.

Almost surely, 2^1121597460 is an apocalyptic number.

1121597460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121597460 is an abundant number, since it is smaller than the sum of its proper divisors (2280582048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121597460 is a wasteful number, since it uses less digits than its factorization.

1121597460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6231112 (or 6231107 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 1121597460 is about 33490.2591808424. The cubic root of 1121597460 is about 1038.9923240080.

The spelling of 1121597460 in words is "one billion, one hundred twenty-one million, five hundred ninety-seven thousand, four hundred sixty".