1297683042 has 16 divisors (see below), whose sum is σ = 2597719680. Its totient is φ = 432168752.

The previous prime is 1297682999. The next prime is 1297683067. The reversal of 1297683042 is 2403867921.

It is a junction number, because it is equal to n+sod(n) for n = 1297682985 and 1297683003.

It is an unprimeable number.

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, 90858 + ... + 104165.

It is an arithmetic number, because the mean of its divisors is an integer number (162357480).

Almost surely, 2^1297683042 is an apocalyptic number.

1297683042 is an abundant number, since it is smaller than the sum of its proper divisors (1300036638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1297683042 is a wasteful number, since it uses less digits than its factorization.

1297683042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196137.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 1297683042 is about 36023.3679991197. The cubic root of 1297683042 is about 1090.7441099207.

The spelling of 1297683042 in words is "one billion, two hundred ninety-seven million, six hundred eighty-three thousand, forty-two".