1249427 has 2 divisors, whose sum is σ = 1249428. Its totient is φ = 1249426.

The previous prime is 1249411. The next prime is 1249433. The reversal of 1249427 is 7249421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1249427 - 2⁴ = 1249411 is a prime.

It is a super-2 number, since 2×1249427² = 3122135656658, which contains 22 as substring.

It is a Chen prime.

It is equal to p₉₆₄₂₈ and since 1249427 and 96428 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1249427.

It is not a weakly prime, because it can be changed into another prime (1249477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624713 + 624714.

It is an arithmetic number, because the mean of its divisors is an integer number (624714).

2^1249427 is an apocalyptic number.

1249427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1249427 is an equidigital number, since it uses as much as digits as its factorization.

1249427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 29.

The square root of 1249427 is about 1117.7777059863. Note that the first 4 decimals coincide. The cubic root of 1249427 is about 107.7052721049.

It can be divided in two parts, 12494 and 27, that added together give a palindrome (12521).

The spelling of 1249427 in words is "one million, two hundred forty-nine thousand, four hundred twenty-seven".