1914457 has 2 divisors, whose sum is σ = 1914458. Its totient is φ = 1914456.

The previous prime is 1914443. The next prime is 1914469. The reversal of 1914457 is 7544191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1038361 + 876096 = 1019^2 + 936^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1914457 is a prime.

It is not a weakly prime, because it can be changed into another prime (1914427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 957228 + 957229.

It is an arithmetic number, because the mean of its divisors is an integer number (957229).

2^1914457 is an apocalyptic number.

It is an amenable number.

1914457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1914457 is an equidigital number, since it uses as much as digits as its factorization.

1914457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 31.

The square root of 1914457 is about 1383.6390425252. The cubic root of 1914457 is about 124.1695780789.

The spelling of 1914457 in words is "one million, nine hundred fourteen thousand, four hundred fifty-seven".