1219974241 has 2 divisors, whose sum is σ = 1219974242. Its totient is φ = 1219974240.

The previous prime is 1219974191. The next prime is 1219974269. The reversal of 1219974241 is 1424799121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 851180625 + 368793616 = 29175^2 + 19204^2 .

It is a cyclic number.

It is not a de Polignac number, because 1219974241 - 2¹⁵ = 1219941473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1219974194 and 1219974203.

It is not a weakly prime, because it can be changed into another prime (1219975241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 609987120 + 609987121.

It is an arithmetic number, because the mean of its divisors is an integer number (609987121).

Almost surely, 2^1219974241 is an apocalyptic number.

It is an amenable number.

1219974241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1219974241 is an equidigital number, since it uses as much as digits as its factorization.

1219974241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 40.

The square root of 1219974241 is about 34928.1296521872. The cubic root of 1219974241 is about 1068.5222098071.

The spelling of 1219974241 in words is "one billion, two hundred nineteen million, nine hundred seventy-four thousand, two hundred forty-one".