1914404129 has 4 divisors (see below), whose sum is σ = 2088440880. Its totient is φ = 1740367380.

The previous prime is 1914404111. The next prime is 1914404137. The reversal of 1914404129 is 9214044191.

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 a de Polignac number, because none of the positive numbers 2^k-1914404129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1914404179) 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, 87018359 + ... + 87018380.

It is an arithmetic number, because the mean of its divisors is an integer number (522110220).

Almost surely, 2^1914404129 is an apocalyptic number.

It is an amenable number.

1914404129 is a deficient number, since it is larger than the sum of its proper divisors (174036751).

1914404129 is a wasteful number, since it uses less digits than its factorization.

1914404129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174036750.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1914404129 is about 43753.9041572292. The cubic root of 1914404129 is about 1241.6843501668.

The spelling of 1914404129 in words is "one billion, nine hundred fourteen million, four hundred four thousand, one hundred twenty-nine".