1425760249 has 2 divisors, whose sum is σ = 1425760250. Its totient is φ = 1425760248.

The previous prime is 1425760169. The next prime is 1425760253. The reversal of 1425760249 is 9420675241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 958335849 + 467424400 = 30957^2 + 21620^2 .

It is a cyclic number.

It is not a de Polignac number, because 1425760249 - 2⁷ = 1425760121 is a prime.

It is not a weakly prime, because it can be changed into another prime (1425760279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712880124 + 712880125.

It is an arithmetic number, because the mean of its divisors is an integer number (712880125).

Almost surely, 2^1425760249 is an apocalyptic number.

It is an amenable number.

1425760249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1425760249 is an equidigital number, since it uses as much as digits as its factorization.

1425760249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 1425760249 is about 37759.2405776387. The cubic root of 1425760249 is about 1125.5086421594.

The spelling of 1425760249 in words is "one billion, four hundred twenty-five million, seven hundred sixty thousand, two hundred forty-nine".