1125984620 has 24 divisors (see below), whose sum is σ = 2375783088. Its totient is φ = 448257600.

The previous prime is 1125984617. The next prime is 1125984623. The reversal of 1125984620 is 264895211.

It is an interprime number because it is at equal distance from previous prime (1125984617) and next prime (1125984623).

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1125984623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129191 + ... + 137630.

It is an arithmetic number, because the mean of its divisors is an integer number (98990962).

Almost surely, 2^1125984620 is an apocalyptic number.

1125984620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1125984620 is an abundant number, since it is smaller than the sum of its proper divisors (1249798468).

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

1125984620 is a wasteful number, since it uses less digits than its factorization.

1125984620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267041 (or 267039 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 1125984620 is about 33555.6943006697. The cubic root of 1125984620 is about 1040.3452441060.

The spelling of 1125984620 in words is "one billion, one hundred twenty-five million, nine hundred eighty-four thousand, six hundred twenty".