19001413 has 4 divisors (see below), whose sum is σ = 19016140. Its totient is φ = 18986688.

The previous prime is 19001407. The next prime is 19001417. The reversal of 19001413 is 31410091.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 494209 + 18507204 = 703^2 + 4302^2 .

It is a cyclic number.

It is not a de Polignac number, because 19001413 - 2⁹ = 19000901 is a prime.

It is a super-2 number, since 2×19001413² = 722107391993138, 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 (19001417) 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, 5220 + ... + 8077.

It is an arithmetic number, because the mean of its divisors is an integer number (4754035).

Almost surely, 2^19001413 is an apocalyptic number.

It is an amenable number.

19001413 is a deficient number, since it is larger than the sum of its proper divisors (14727).

19001413 is a wasteful number, since it uses less digits than its factorization.

19001413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14726.

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

The square root of 19001413 is about 4359.0610227433. The cubic root of 19001413 is about 266.8467795355.

The spelling of 19001413 in words is "nineteen million, one thousand, four hundred thirteen".