1125715953 has 4 divisors (see below), whose sum is σ = 1500954608. Its totient is φ = 750477300.

The previous prime is 1125715909. The next prime is 1125715961. The reversal of 1125715953 is 3595175211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1125715953 - 2⁸ = 1125715697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125715853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187619323 + ... + 187619328.

It is an arithmetic number, because the mean of its divisors is an integer number (375238652).

Almost surely, 2^1125715953 is an apocalyptic number.

It is an amenable number.

1125715953 is a deficient number, since it is larger than the sum of its proper divisors (375238655).

1125715953 is an equidigital number, since it uses as much as digits as its factorization.

1125715953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375238654.

The product of its digits is 47250, while the sum is 39.

The square root of 1125715953 is about 33551.6907621658. The cubic root of 1125715953 is about 1040.2624932216.

The spelling of 1125715953 in words is "one billion, one hundred twenty-five million, seven hundred fifteen thousand, nine hundred fifty-three".