1461217379 has 2 divisors, whose sum is σ = 1461217380. Its totient is φ = 1461217378.

The previous prime is 1461217343. The next prime is 1461217453. The reversal of 1461217379 is 9737121641.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1461217379 - 2²⁴ = 1444440163 is a prime.

It is not a weakly prime, because it can be changed into another prime (1461217309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 730608689 + 730608690.

It is an arithmetic number, because the mean of its divisors is an integer number (730608690).

Almost surely, 2^1461217379 is an apocalyptic number.

1461217379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1461217379 is an equidigital number, since it uses as much as digits as its factorization.

1461217379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 41.

The square root of 1461217379 is about 38225.8731620352. The cubic root of 1461217379 is about 1134.7624151611.

The spelling of 1461217379 in words is "one billion, four hundred sixty-one million, two hundred seventeen thousand, three hundred seventy-nine".