946439149 has 2 divisors, whose sum is σ = 946439150. Its totient is φ = 946439148.

The previous prime is 946439069. The next prime is 946439161. The reversal of 946439149 is 941934649.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 822829225 + 123609924 = 28685^2 + 11118^2 .

It is an emirp because it is prime and its reverse (941934649) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 946439149 - 2²³ = 938050541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (946439849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 473219574 + 473219575.

It is an arithmetic number, because the mean of its divisors is an integer number (473219575).

Almost surely, 2^946439149 is an apocalyptic number.

It is an amenable number.

946439149 is a deficient number, since it is larger than the sum of its proper divisors (1).

946439149 is an equidigital number, since it uses as much as digits as its factorization.

946439149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 49.

The square root of 946439149 is about 30764.2511529210. The cubic root of 946439149 is about 981.8177940200.

The spelling of 946439149 in words is "nine hundred forty-six million, four hundred thirty-nine thousand, one hundred forty-nine".