68449149 has 12 divisors (see below), whose sum is σ = 101543676. Its totient is φ = 44399232.

The previous prime is 68449141. The next prime is 68449159. The reversal of 68449149 is 94194486.

68449149 is a `hidden beast` number, since 68 + 449 + 149 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 24651225 + 43797924 = 4965^2 + 6618^2 .

It is not a de Polignac number, because 68449149 - 2³ = 68449141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68449141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102444 + ... + 103109.

It is an arithmetic number, because the mean of its divisors is an integer number (8461973).

Almost surely, 2^68449149 is an apocalyptic number.

It is an amenable number.

68449149 is a deficient number, since it is larger than the sum of its proper divisors (33094527).

68449149 is a wasteful number, since it uses less digits than its factorization.

68449149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205596 (or 205593 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 68449149 is about 8273.4000870259. The cubic root of 68449149 is about 409.0622012313.

The spelling of 68449149 in words is "sixty-eight million, four hundred forty-nine thousand, one hundred forty-nine".