1280497937 has 8 divisors (see below), whose sum is σ = 1318329600. Its totient is φ = 1242980640.

The previous prime is 1280497931. The next prime is 1280497943. The reversal of 1280497937 is 7397940821.

It is an interprime number because it is at equal distance from previous prime (1280497931) and next prime (1280497943).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1280497937 - 2¹⁰ = 1280496913 is a prime.

It is a super-2 number, since 2×1280497937² = 3279349933322511938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1280497931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70313 + ... + 86630.

It is an arithmetic number, because the mean of its divisors is an integer number (164791200).

Almost surely, 2^1280497937 is an apocalyptic number.

It is an amenable number.

1280497937 is a deficient number, since it is larger than the sum of its proper divisors (37831663).

1280497937 is a wasteful number, since it uses less digits than its factorization.

1280497937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157183.

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 1280497937 is about 35784.0458444821. The cubic root of 1280497937 is about 1085.9078209857.

The spelling of 1280497937 in words is "one billion, two hundred eighty million, four hundred ninety-seven thousand, nine hundred thirty-seven".