1271946052 has 36 divisors (see below), whose sum is σ = 2552105556. Its totient is φ = 552514560.

The previous prime is 1271945999. The next prime is 1271946059. The reversal of 1271946052 is 2506491721.

It can be written as a sum of positive squares in 6 ways, for example, as 20484676 + 1251461376 = 4526^2 + 35376^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271946059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43849 + ... + 66832.

It is an arithmetic number, because the mean of its divisors is an integer number (70891821).

Almost surely, 2^1271946052 is an apocalyptic number.

It is an amenable number.

1271946052 is an abundant number, since it is smaller than the sum of its proper divisors (1280159504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1271946052 is a wasteful number, since it uses less digits than its factorization.

1271946052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110728 (or 110713 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 1271946052 is about 35664.3526788304. The cubic root of 1271946052 is about 1083.4849849921.

The spelling of 1271946052 in words is "one billion, two hundred seventy-one million, nine hundred forty-six thousand, fifty-two".