1125620313 has 4 divisors (see below), whose sum is σ = 1500827088. Its totient is φ = 750413540.

The previous prime is 1125620189. The next prime is 1125620369. The reversal of 1125620313 is 3130265211.

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 a cyclic number.

It is not a de Polignac number, because 1125620313 - 2⁸ = 1125620057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1125620383) 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, 187603383 + ... + 187603388.

It is an arithmetic number, because the mean of its divisors is an integer number (375206772).

Almost surely, 2^1125620313 is an apocalyptic number.

It is an amenable number.

1125620313 is a deficient number, since it is larger than the sum of its proper divisors (375206775).

1125620313 is an equidigital number, since it uses as much as digits as its factorization.

1125620313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375206774.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1125620313 is about 33550.2654683983. The cubic root of 1125620313 is about 1040.2330324083.

Adding to 1125620313 its reverse (3130265211), we get a palindrome (4255885524).

The spelling of 1125620313 in words is "one billion, one hundred twenty-five million, six hundred twenty thousand, three hundred thirteen".