1125208641 has 8 divisors (see below), whose sum is σ = 1520830240. Its totient is φ = 739863072.

The previous prime is 1125208627. The next prime is 1125208657. The reversal of 1125208641 is 1468025211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1125208641 - 2⁹ = 1125208129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1125208599 and 1125208608.

It is not an unprimeable number, because it can be changed into a prime (1125208621) 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, 2568751 + ... + 2569188.

It is an arithmetic number, because the mean of its divisors is an integer number (190103780).

Almost surely, 2^1125208641 is an apocalyptic number.

It is an amenable number.

1125208641 is a deficient number, since it is larger than the sum of its proper divisors (395621599).

1125208641 is an equidigital number, since it uses as much as digits as its factorization.

1125208641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5138015.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 1125208641 is about 33544.1297546978. The cubic root of 1125208641 is about 1040.1062024804.

The spelling of 1125208641 in words is "one billion, one hundred twenty-five million, two hundred eight thousand, six hundred forty-one".