1240475497 has 2 divisors, whose sum is σ = 1240475498. Its totient is φ = 1240475496.

The previous prime is 1240475429. The next prime is 1240475501. The reversal of 1240475497 is 7945740421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 649791081 + 590684416 = 25491^2 + 24304^2 .

It is a cyclic number.

It is not a de Polignac number, because 1240475497 - 2¹⁵ = 1240442729 is a prime.

It is not a weakly prime, because it can be changed into another prime (1240475417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620237748 + 620237749.

It is an arithmetic number, because the mean of its divisors is an integer number (620237749).

Almost surely, 2^1240475497 is an apocalyptic number.

It is an amenable number.

1240475497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240475497 is an equidigital number, since it uses as much as digits as its factorization.

1240475497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 1240475497 is about 35220.3846798981. The cubic root of 1240475497 is about 1074.4743771102.

The spelling of 1240475497 in words is "one billion, two hundred forty million, four hundred seventy-five thousand, four hundred ninety-seven".