1214252125 has 16 divisors (see below), whose sum is σ = 1556348976. Its totient is φ = 945144000.

The previous prime is 1214252077. The next prime is 1214252141. The reversal of 1214252125 is 5212524121.

It can be written as a sum of positive squares in 8 ways, for example, as 283147929 + 931104196 = 16827^2 + 30514^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1214252125 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 1214252125.

It is a congruent number.

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, 126646 + ... + 135895.

It is an arithmetic number, because the mean of its divisors is an integer number (97271811).

Almost surely, 2^1214252125 is an apocalyptic number.

It is an amenable number.

1214252125 is a deficient number, since it is larger than the sum of its proper divisors (342096851).

1214252125 is an equidigital number, since it uses as much as digits as its factorization.

1214252125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262593 (or 262583 counting only the distinct ones).

The product of its digits is 1600, while the sum is 25.

The square root of 1214252125 is about 34846.1206592642. The cubic root of 1214252125 is about 1066.8490071854.

Adding to 1214252125 its reverse (5212524121), we get a palindrome (6426776246).

The spelling of 1214252125 in words is "one billion, two hundred fourteen million, two hundred fifty-two thousand, one hundred twenty-five".