1290344097 has 12 divisors (see below), whose sum is σ = 2001350256. Its totient is φ = 737339400.

The previous prime is 1290344053. The next prime is 1290344119. The reversal of 1290344097 is 7904430921.

It is not a de Polignac number, because 1290344097 - 2¹⁰ = 1290343073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1290340097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4388779 + ... + 4389072.

It is an arithmetic number, because the mean of its divisors is an integer number (166779188).

Almost surely, 2^1290344097 is an apocalyptic number.

It is an amenable number.

1290344097 is a deficient number, since it is larger than the sum of its proper divisors (711006159).

1290344097 is an equidigital number, since it uses as much as digits as its factorization.

1290344097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8777868 (or 8777861 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 1290344097 is about 35921.3598990907. The cubic root of 1290344097 is about 1088.6840154428.

The spelling of 1290344097 in words is "one billion, two hundred ninety million, three hundred forty-four thousand, ninety-seven".