1297419752 has 8 divisors (see below), whose sum is σ = 2432662050. Its totient is φ = 648709872.

The previous prime is 1297419737. The next prime is 1297419757. The reversal of 1297419752 is 2579147921.

It can be written as a sum of positive squares in only one way, i.e., 1048852996 + 248566756 = 32386^2 + 15766^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1297419697 and 1297419706.

It is not an unprimeable number, because it can be changed into a prime (1297419757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81088727 + ... + 81088742.

Almost surely, 2^1297419752 is an apocalyptic number.

It is an amenable number.

1297419752 is a deficient number, since it is larger than the sum of its proper divisors (1135242298).

1297419752 is a wasteful number, since it uses less digits than its factorization.

1297419752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162177475 (or 162177471 counting only the distinct ones).

The product of its digits is 317520, while the sum is 47.

The square root of 1297419752 is about 36019.7133803144. The cubic root of 1297419752 is about 1090.6703370419.

The spelling of 1297419752 in words is "one billion, two hundred ninety-seven million, four hundred nineteen thousand, seven hundred fifty-two".