1254899 has 2 divisors, whose sum is σ = 1254900.
Its totient is φ = 1254898.
The previous prime is 1254863. The next prime is 1254907. The reversal of 1254899 is 9984521.
It is a strong prime.
It is an emirp because it is prime and its reverse (9984521) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1254899 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (1254839) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627449 + 627450.
It is an arithmetic number, because the mean of its divisors is an integer number (627450).
21254899 is an apocalyptic number.
1254899 is a deficient number, since it is larger than the sum of its proper divisors (1).
1254899 is an equidigital number, since it uses as much as digits as its factorization.
1254899 is an evil number, because the sum of its binary digits is even.
The product of its digits is 25920, while the sum is 38.
The square root of 1254899 is about 1120.2227457073.
Note that the first 3 decimals coincide.
The cubic root of 1254899 is about 107.8622787282.
The spelling of 1254899 in words is "one million, two hundred fifty-four thousand, eight hundred ninety-nine".