19246949 has 2 divisors, whose sum is σ = 19246950. Its totient is φ = 19246948.

The previous prime is 19246933. The next prime is 19246967. The reversal of 19246949 is 94964291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18232900 + 1014049 = 4270^2 + 1007^2 .

It is an emirp because it is prime and its reverse (94964291) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19246949 - 2⁴ = 19246933 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19246979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9623474 + 9623475.

It is an arithmetic number, because the mean of its divisors is an integer number (9623475).

Almost surely, 2^19246949 is an apocalyptic number.

It is an amenable number.

19246949 is a deficient number, since it is larger than the sum of its proper divisors (1).

19246949 is an equidigital number, since it uses as much as digits as its factorization.

19246949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 44.

The square root of 19246949 is about 4387.1344861994. The cubic root of 19246949 is about 267.9912607605.

The spelling of 19246949 in words is "nineteen million, two hundred forty-six thousand, nine hundred forty-nine".