493955149 has 2 divisors, whose sum is σ = 493955150. Its totient is φ = 493955148.

The previous prime is 493955123. The next prime is 493955171. The reversal of 493955149 is 941559394.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 294637225 + 199317924 = 17165^2 + 14118^2 .

It is a cyclic number.

It is not a de Polignac number, because 493955149 - 2¹⁷ = 493824077 is a prime.

It is a super-2 number, since 2×493955149² = 487983378447224402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (493955849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246977574 + 246977575.

It is an arithmetic number, because the mean of its divisors is an integer number (246977575).

Almost surely, 2^493955149 is an apocalyptic number.

It is an amenable number.

493955149 is a deficient number, since it is larger than the sum of its proper divisors (1).

493955149 is an equidigital number, since it uses as much as digits as its factorization.

493955149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 874800, while the sum is 49.

The square root of 493955149 is about 22225.1017770448. The cubic root of 493955149 is about 790.4890146517.

The spelling of 493955149 in words is "four hundred ninety-three million, nine hundred fifty-five thousand, one hundred forty-nine".