1125310145 has 8 divisors (see below), whose sum is σ = 1350799656. Its totient is φ = 899963136.

The previous prime is 1125310141. The next prime is 1125310177. The reversal of 1125310145 is 5410135211.

It can be written as a sum of positive squares in 4 ways, for example, as 607474609 + 517835536 = 24647^2 + 22756^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1125310145 - 2² = 1125310141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1125310145.

It is not an unprimeable number, because it can be changed into a prime (1125310141) 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, 17402 + ... + 50531.

It is an arithmetic number, because the mean of its divisors is an integer number (168849957).

Almost surely, 2^1125310145 is an apocalyptic number.

It is an amenable number.

1125310145 is a deficient number, since it is larger than the sum of its proper divisors (225489511).

1125310145 is an equidigital number, since it uses as much as digits as its factorization.

1125310145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71251.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1125310145 is about 33545.6427125789. The cubic root of 1125310145 is about 1040.1374772034.

Adding to 1125310145 its reverse (5410135211), we get a palindrome (6535445356).

The spelling of 1125310145 in words is "one billion, one hundred twenty-five million, three hundred ten thousand, one hundred forty-five".