1228177164 has 12 divisors (see below), whose sum is σ = 2865746744. Its totient is φ = 409392384.

The previous prime is 1228177141. The next prime is 1228177243. The reversal of 1228177164 is 4617718221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 51174037 + ... + 51174060.

Almost surely, 2^1228177164 is an apocalyptic number.

It is an amenable number.

1228177164 is an abundant number, since it is smaller than the sum of its proper divisors (1637569580).

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

1228177164 is a wasteful number, since it uses less digits than its factorization.

1228177164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102348104 (or 102348102 counting only the distinct ones).

The product of its digits is 37632, while the sum is 39.

The square root of 1228177164 is about 35045.3586655922. The cubic root of 1228177164 is about 1070.9117229934.

The spelling of 1228177164 in words is "one billion, two hundred twenty-eight million, one hundred seventy-seven thousand, one hundred sixty-four".