1914137893 has 4 divisors (see below), whose sum is σ = 1914578208. Its totient is φ = 1913697580.

The previous prime is 1914137861. The next prime is 1914137917. The reversal of 1914137893 is 3987314191.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1914137893 - 2⁵ = 1914137861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1914137803) 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, 213571 + ... + 222352.

It is an arithmetic number, because the mean of its divisors is an integer number (478644552).

Almost surely, 2^1914137893 is an apocalyptic number.

It is an amenable number.

1914137893 is a deficient number, since it is larger than the sum of its proper divisors (440315).

1914137893 is an equidigital number, since it uses as much as digits as its factorization.

1914137893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440314.

The product of its digits is 163296, while the sum is 46.

The square root of 1914137893 is about 43750.8616258012. The cubic root of 1914137893 is about 1241.6267871902.

The spelling of 1914137893 in words is "one billion, nine hundred fourteen million, one hundred thirty-seven thousand, eight hundred ninety-three".