1275125119 has 2 divisors, whose sum is σ = 1275125120. Its totient is φ = 1275125118.

The previous prime is 1275125081. The next prime is 1275125141. The reversal of 1275125119 is 9115215721.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1275125119 - 2²¹ = 1273027967 is a prime.

It is a super-2 number, since 2×1275125119² = 3251888138209528322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1275125149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637562559 + 637562560.

It is an arithmetic number, because the mean of its divisors is an integer number (637562560).

Almost surely, 2^1275125119 is an apocalyptic number.

1275125119 is a deficient number, since it is larger than the sum of its proper divisors (1).

1275125119 is an equidigital number, since it uses as much as digits as its factorization.

1275125119 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6300, while the sum is 34.

The square root of 1275125119 is about 35708.8941161722. The cubic root of 1275125119 is about 1084.3869115219.

The spelling of 1275125119 in words is "one billion, two hundred seventy-five million, one hundred twenty-five thousand, one hundred nineteen".