19213012 has 24 divisors (see below), whose sum is σ = 41382656. Its totient is φ = 7600608.

The previous prime is 19213003. The next prime is 19213021. The reversal of 19213012 is 21031291.

It is an interprime number because it is at equal distance from previous prime (19213003) and next prime (19213021).

It is a super-2 number, since 2×19213012² = 738279660224288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26028 + ... + 26755.

Almost surely, 2^19213012 is an apocalyptic number.

It is an amenable number.

19213012 is an abundant number, since it is smaller than the sum of its proper divisors (22169644).

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

19213012 is a wasteful number, since it uses less digits than its factorization.

19213012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52807 (or 52805 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 19213012 is about 4383.2649931301. The cubic root of 19213012 is about 267.8336570782.

The spelling of 19213012 in words is "nineteen million, two hundred thirteen thousand, twelve".