19114381 has 16 divisors (see below), whose sum is σ = 22579200. Its totient is φ = 15952320.

The previous prime is 19114369. The next prime is 19114391. The reversal of 19114381 is 18341191.

It is a cyclic number.

It is not a de Polignac number, because 19114381 - 2¹⁵ = 19081613 is a prime.

It is a super-2 number, since 2×19114381² = 730719122026322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19114391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49716 + ... + 50098.

It is an arithmetic number, because the mean of its divisors is an integer number (1411200).

Almost surely, 2^19114381 is an apocalyptic number.

19114381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19114381 is a deficient number, since it is larger than the sum of its proper divisors (3464819).

19114381 is a wasteful number, since it uses less digits than its factorization.

19114381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756.

The product of its digits is 864, while the sum is 28.

The square root of 19114381 is about 4371.9996569076. Note that the first 3 decimals coincide. The cubic root of 19114381 is about 267.3745578900.

The spelling of 19114381 in words is "nineteen million, one hundred fourteen thousand, three hundred eighty-one".