1545722164 has 12 divisors (see below), whose sum is σ = 3091444384. Its totient is φ = 662452344.

The previous prime is 1545722089. The next prime is 1545722183. The reversal of 1545722164 is 4612275451.

1545722164 is an admirable number.

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

It is a congruent number.

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, 27602154 + ... + 27602209.

Almost surely, 2^1545722164 is an apocalyptic number.

1545722164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1545722164 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1545722164 is a wasteful number, since it uses less digits than its factorization.

1545722164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55204374 (or 55204372 counting only the distinct ones).

The product of its digits is 67200, while the sum is 37.

The square root of 1545722164 is about 39315.6732614361. The cubic root of 1545722164 is about 1156.2288761507.

The spelling of 1545722164 in words is "one billion, five hundred forty-five million, seven hundred twenty-two thousand, one hundred sixty-four".