1275420544 has 32 divisors (see below), whose sum is σ = 2546483040. Its totient is φ = 636303360.

The previous prime is 1275420539. The next prime is 1275420577. The reversal of 1275420544 is 4450245721.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48504 + ... + 70024.

It is an arithmetic number, because the mean of its divisors is an integer number (79577595).

Almost surely, 2^1275420544 is an apocalyptic number.

It is an amenable number.

1275420544 is a deficient number, since it is larger than the sum of its proper divisors (1271062496).

1275420544 is an equidigital number, since it uses as much as digits as its factorization.

1275420544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21998 (or 21986 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 34.

The square root of 1275420544 is about 35713.0304510833. The cubic root of 1275420544 is about 1084.4706497793.

The spelling of 1275420544 in words is "one billion, two hundred seventy-five million, four hundred twenty thousand, five hundred forty-four".