1961232419 has 2 divisors, whose sum is σ = 1961232420. Its totient is φ = 1961232418.

The previous prime is 1961232389. The next prime is 1961232439. The reversal of 1961232419 is 9142321691.

It is a strong prime.

It is an emirp because it is prime and its reverse (9142321691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1961232419 - 2²⁰ = 1960183843 is a prime.

It is a super-2 number, since 2×1961232419² = 7692865202673183122, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1961232439) by changing a digit.

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 as a sum of consecutive naturals, namely, 980616209 + 980616210.

It is an arithmetic number, because the mean of its divisors is an integer number (980616210).

Almost surely, 2^1961232419 is an apocalyptic number.

1961232419 is a deficient number, since it is larger than the sum of its proper divisors (1).

1961232419 is an equidigital number, since it uses as much as digits as its factorization.

1961232419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 38.

The square root of 1961232419 is about 44285.8038088957. The cubic root of 1961232419 is about 1251.7271950586.

The spelling of 1961232419 in words is "one billion, nine hundred sixty-one million, two hundred thirty-two thousand, four hundred nineteen".