1156644325 has 6 divisors (see below), whose sum is σ = 1434238994. Its totient is φ = 925315440.

The previous prime is 1156644301. The next prime is 1156644329. The reversal of 1156644325 is 5234466511.

1156644325 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 374770881 + 781873444 = 19359^2 + 27962^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1156644325 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156644329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23132862 + ... + 23132911.

Almost surely, 2^1156644325 is an apocalyptic number.

It is an amenable number.

1156644325 is a deficient number, since it is larger than the sum of its proper divisors (277594669).

1156644325 is an equidigital number, since it uses as much as digits as its factorization.

1156644325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46265783 (or 46265778 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The square root of 1156644325 is about 34009.4740476827. The cubic root of 1156644325 is about 1049.7034158565.

The spelling of 1156644325 in words is "one billion, one hundred fifty-six million, six hundred forty-four thousand, three hundred twenty-five".