1547946164 has 12 divisors (see below), whose sum is σ = 2771903904. Its totient is φ = 755973624.

The previous prime is 1547946119. The next prime is 1547946167. The reversal of 1547946164 is 4616497451.

It is a super-2 number, since 2×1547946164² = 4792274653284629792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1547946167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4499672 + ... + 4500015.

It is an arithmetic number, because the mean of its divisors is an integer number (230991992).

Almost surely, 2^1547946164 is an apocalyptic number.

It is an amenable number.

1547946164 is a deficient number, since it is larger than the sum of its proper divisors (1223957740).

1547946164 is a wasteful number, since it uses less digits than its factorization.

1547946164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8999734 (or 8999732 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The square root of 1547946164 is about 39343.9469804441. The cubic root of 1547946164 is about 1156.7831415049.

The spelling of 1547946164 in words is "one billion, five hundred forty-seven million, nine hundred forty-six thousand, one hundred sixty-four".