1425651109 has 2 divisors, whose sum is σ = 1425651110. Its totient is φ = 1425651108.

The previous prime is 1425651083. The next prime is 1425651121. The reversal of 1425651109 is 9011565241.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1005524100 + 420127009 = 31710^2 + 20497^2 .

It is a cyclic number.

It is not a de Polignac number, because 1425651109 - 2¹⁹ = 1425126821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1425651809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712825554 + 712825555.

It is an arithmetic number, because the mean of its divisors is an integer number (712825555).

Almost surely, 2^1425651109 is an apocalyptic number.

It is an amenable number.

1425651109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1425651109 is an equidigital number, since it uses as much as digits as its factorization.

1425651109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 1425651109 is about 37757.7953408300. The cubic root of 1425651109 is about 1125.4799227101.

The spelling of 1425651109 in words is "one billion, four hundred twenty-five million, six hundred fifty-one thousand, one hundred nine".