1297996101 has 6 divisors (see below), whose sum is σ = 1874883270. Its totient is φ = 865330728.

The previous prime is 1297996093. The next prime is 1297996103. The reversal of 1297996101 is 1016997921.

1297996101 is a `hidden beast` number, since 1 + 29 + 7 + 9 + 9 + 610 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1243620225 + 54375876 = 35265^2 + 7374^2 .

It is not a de Polignac number, because 1297996101 - 2³ = 1297996093 is a prime.

It is a super-2 number, since 2×1297996101² = 3369587756422404402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297996103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72110886 + ... + 72110903.

It is an arithmetic number, because the mean of its divisors is an integer number (312480545).

Almost surely, 2^1297996101 is an apocalyptic number.

It is an amenable number.

1297996101 is a deficient number, since it is larger than the sum of its proper divisors (576887169).

1297996101 is a wasteful number, since it uses less digits than its factorization.

1297996101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144221795 (or 144221792 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 45.

The square root of 1297996101 is about 36027.7129582215. The cubic root of 1297996101 is about 1090.8318149031.

The spelling of 1297996101 in words is "one billion, two hundred ninety-seven million, nine hundred ninety-six thousand, one hundred one".