1290166797 has 16 divisors (see below), whose sum is σ = 1765332800. Its totient is φ = 837672192.

The previous prime is 1290166789. The next prime is 1290166831. The reversal of 1290166797 is 7976610921.

It is a happy number.

It is not a de Polignac number, because 1290166797 - 2³ = 1290166789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1290166777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30693 + ... + 59349.

It is an arithmetic number, because the mean of its divisors is an integer number (110333300).

Almost surely, 2^1290166797 is an apocalyptic number.

It is an amenable number.

1290166797 is a deficient number, since it is larger than the sum of its proper divisors (475166003).

1290166797 is a wasteful number, since it uses less digits than its factorization.

1290166797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29052.

The product of its (nonzero) digits is 285768, while the sum is 48.

The square root of 1290166797 is about 35918.8919233319. The cubic root of 1290166797 is about 1088.6341495407.

The spelling of 1290166797 in words is "one billion, two hundred ninety million, one hundred sixty-six thousand, seven hundred ninety-seven".