1275620012 has 24 divisors (see below), whose sum is σ = 2247060816. Its totient is φ = 633616128.

The previous prime is 1275620011. The next prime is 1275620039. The reversal of 1275620012 is 2100265721.

It is not an unprimeable number, because it can be changed into a prime (1275620011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486128 + ... + 488744.

It is an arithmetic number, because the mean of its divisors is an integer number (93627534).

Almost surely, 2^1275620012 is an apocalyptic number.

It is an amenable number.

1275620012 is a deficient number, since it is larger than the sum of its proper divisors (971440804).

1275620012 is a wasteful number, since it uses less digits than its factorization.

1275620012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3377 (or 3375 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1275620012 is about 35715.8229920577. The cubic root of 1275620012 is about 1084.5271816991.

Adding to 1275620012 its reverse (2100265721), we get a palindrome (3375885733).

It can be divided in two parts, 12756 and 20012, that added together give a 15-th power (32768 = 2¹⁵).

The spelling of 1275620012 in words is "one billion, two hundred seventy-five million, six hundred twenty thousand, twelve".