1125627213 has 4 divisors (see below), whose sum is σ = 1500836288. Its totient is φ = 750418140.

The previous prime is 1125627149. The next prime is 1125627221. The reversal of 1125627213 is 3127265211.

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 1125627213 - 2⁶ = 1125627149 is a prime.

It is a super-2 number, since 2×1125627213² = 2534073245292294738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125628213) 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, 187604533 + ... + 187604538.

It is an arithmetic number, because the mean of its divisors is an integer number (375209072).

Almost surely, 2^1125627213 is an apocalyptic number.

It is an amenable number.

1125627213 is a deficient number, since it is larger than the sum of its proper divisors (375209075).

1125627213 is an equidigital number, since it uses as much as digits as its factorization.

1125627213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375209074.

The product of its digits is 5040, while the sum is 30.

The square root of 1125627213 is about 33550.3682990217. The cubic root of 1125627213 is about 1040.2351579306.

The spelling of 1125627213 in words is "one billion, one hundred twenty-five million, six hundred twenty-seven thousand, two hundred thirteen".