1214561375 has 8 divisors (see below), whose sum is σ = 1515772752. Its totient is φ = 971649000.

The previous prime is 1214561353. The next prime is 1214561399. The reversal of 1214561375 is 5731654121.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1214561375 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4858121 + ... + 4858370.

It is an arithmetic number, because the mean of its divisors is an integer number (189471594).

Almost surely, 2^1214561375 is an apocalyptic number.

1214561375 is a deficient number, since it is larger than the sum of its proper divisors (301211377).

1214561375 is an frugal number, since it uses more digits than its factorization.

1214561375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9716506 (or 9716496 counting only the distinct ones).

The product of its digits is 25200, while the sum is 35.

The square root of 1214561375 is about 34850.5577430262. The cubic root of 1214561375 is about 1066.9395691162.

The spelling of 1214561375 in words is "one billion, two hundred fourteen million, five hundred sixty-one thousand, three hundred seventy-five".