43146012 has 48 divisors (see below), whose sum is σ = 123909632. Its totient is φ = 11378880.

The previous prime is 43146001. The next prime is 43146023. The reversal of 43146012 is 21064134.

It is an interprime number because it is at equal distance from previous prime (43146001) and next prime (43146023).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 43146012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18664 + ... + 20847.

Almost surely, 2^43146012 is an apocalyptic number.

43146012 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

43146012 is an abundant number, since it is smaller than the sum of its proper divisors (80763620).

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

43146012 is a wasteful number, since it uses less digits than its factorization.

43146012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39538 (or 39536 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 43146012 is about 6568.5623997950. The cubic root of 43146012 is about 350.7358992554.

The spelling of 43146012 in words is "forty-three million, one hundred forty-six thousand, twelve".