1251101625 has 16 divisors (see below), whose sum is σ = 2081833728. Its totient is φ = 667254000.

The previous prime is 1251101617. The next prime is 1251101707. The reversal of 1251101625 is 5261011521.

1251101625 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1251101625 - 2³ = 1251101617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1251101595 and 1251101604.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1667761 + ... + 1668510.

It is an arithmetic number, because the mean of its divisors is an integer number (130114608).

Almost surely, 2^1251101625 is an apocalyptic number.

1251101625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1251101625 is a deficient number, since it is larger than the sum of its proper divisors (830732103).

1251101625 is an equidigital number, since it uses as much as digits as its factorization.

1251101625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336289 (or 3336279 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 1251101625 is about 35370.9149584797. The cubic root of 1251101625 is about 1077.5337026475.

The spelling of 1251101625 in words is "one billion, two hundred fifty-one million, one hundred one thousand, six hundred twenty-five".