185713949 has 2 divisors, whose sum is σ = 185713950. Its totient is φ = 185713948.

The previous prime is 185713909. The next prime is 185713973. The reversal of 185713949 is 949317581.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184470724 + 1243225 = 13582^2 + 1115^2 .

It is a cyclic number.

It is not a de Polignac number, because 185713949 - 2¹⁶ = 185648413 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 (185713909) 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, 92856974 + 92856975.

It is an arithmetic number, because the mean of its divisors is an integer number (92856975).

Almost surely, 2^185713949 is an apocalyptic number.

It is an amenable number.

185713949 is a deficient number, since it is larger than the sum of its proper divisors (1).

185713949 is an equidigital number, since it uses as much as digits as its factorization.

185713949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 47.

The square root of 185713949 is about 13627.6905233425. The cubic root of 185713949 is about 570.5339707442.

The spelling of 185713949 in words is "one hundred eighty-five million, seven hundred thirteen thousand, nine hundred forty-nine".