1271629164 has 24 divisors (see below), whose sum is σ = 3195376240. Its totient is φ = 391270464.

The previous prime is 1271629147. The next prime is 1271629171. The reversal of 1271629164 is 4619261721.

1271629164 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 4075579 + ... + 4075890.

Almost surely, 2^1271629164 is an apocalyptic number.

It is an amenable number.

1271629164 is an abundant number, since it is smaller than the sum of its proper divisors (1923747076).

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

1271629164 is a wasteful number, since it uses less digits than its factorization.

1271629164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8151489 (or 8151487 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 1271629164 is about 35659.9097587192. The cubic root of 1271629164 is about 1083.3949990197.

The spelling of 1271629164 in words is "one billion, two hundred seventy-one million, six hundred twenty-nine thousand, one hundred sixty-four".