1153023125 has 10 divisors (see below), whose sum is σ = 1440818478. Its totient is φ = 922418000.

The previous prime is 1153023121. The next prime is 1153023127. The reversal of 1153023125 is 5213203511.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 501446449 + 651576676 = 22393^2 + 25526^2 .

It is not a de Polignac number, because 1153023125 - 2² = 1153023121 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 1153023125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153023121) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 921794 + ... + 923043.

Almost surely, 2^1153023125 is an apocalyptic number.

It is an amenable number.

1153023125 is a deficient number, since it is larger than the sum of its proper divisors (287795353).

1153023125 is an frugal number, since it uses more digits than its factorization.

1153023125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844857 (or 1844842 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1153023125 is about 33956.1942066540. The cubic root of 1153023125 is about 1048.6068068313.

Adding to 1153023125 its reverse (5213203511), we get a palindrome (6366226636).

The spelling of 1153023125 in words is "one billion, one hundred fifty-three million, twenty-three thousand, one hundred twenty-five".