1914139 has 2 divisors, whose sum is σ = 1914140. Its totient is φ = 1914138.

The previous prime is 1914131. The next prime is 1914163. The reversal of 1914139 is 9314191.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1914139 - 2³ = 1914131 is a prime.

It is a super-2 number, since 2×1914139² = 7327856222642, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1914131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 957069 + 957070.

It is an arithmetic number, because the mean of its divisors is an integer number (957070).

2^1914139 is an apocalyptic number.

1914139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1914139 is an equidigital number, since it uses as much as digits as its factorization.

1914139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 28.

The square root of 1914139 is about 1383.5241233893. The cubic root of 1914139 is about 124.1627026546.

The spelling of 1914139 in words is "one million, nine hundred fourteen thousand, one hundred thirty-nine".