1275220412 has 6 divisors (see below), whose sum is σ = 2231635728. Its totient is φ = 637610204.

The previous prime is 1275220381. The next prime is 1275220459. The reversal of 1275220412 is 2140225721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159402548 + ... + 159402555.

It is an arithmetic number, because the mean of its divisors is an integer number (371939288).

Almost surely, 2^1275220412 is an apocalyptic number.

It is an amenable number.

1275220412 is a deficient number, since it is larger than the sum of its proper divisors (956415316).

1275220412 is a wasteful number, since it uses less digits than its factorization.

1275220412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318805107 (or 318805105 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 1275220412 is about 35710.2283946771. The cubic root of 1275220412 is about 1084.4139237490.

The spelling of 1275220412 in words is "one billion, two hundred seventy-five million, two hundred twenty thousand, four hundred twelve".