2391019 has 2 divisors, whose sum is σ = 2391020. Its totient is φ = 2391018.

The previous prime is 2391013. The next prime is 2391023. The reversal of 2391019 is 9101932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2391019 - 2⁵ = 2390987 is a prime.

It is a super-2 number, since 2×2391019² = 11433943716722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2390984 and 2391002.

It is not a weakly prime, because it can be changed into another prime (2391013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1195509 + 1195510.

It is an arithmetic number, because the mean of its divisors is an integer number (1195510).

2^2391019 is an apocalyptic number.

2391019 is a deficient number, since it is larger than the sum of its proper divisors (1).

2391019 is an equidigital number, since it uses as much as digits as its factorization.

2391019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 2391019 is about 1546.2920164057. The cubic root of 2391019 is about 133.7193763411.

The spelling of 2391019 in words is "two million, three hundred ninety-one thousand, nineteen".