61367449 has 18 divisors (see below), whose sum is σ = 73065678. Its totient is φ = 51480000.

The previous prime is 61367443. The next prime is 61367459. The reversal of 61367449 is 94476316.

It can be written as a sum of positive squares in 3 ways, for example, as 27225 + 61340224 = 165^2 + 7832^2 .

It is not a de Polignac number, because 61367449 - 2³ = 61367441 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61367441) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 18949 + ... + 21949.

Almost surely, 2^61367449 is an apocalyptic number.

It is an amenable number.

61367449 is a deficient number, since it is larger than the sum of its proper divisors (11698229).

61367449 is a wasteful number, since it uses less digits than its factorization.

61367449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3049 (or 3025 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 61367449 is about 7833.7378689869. The cubic root of 61367449 is about 394.4385528769.

It can be divided in two parts, 61367 and 449, that added together give a palindrome (61816).

The spelling of 61367449 in words is "sixty-one million, three hundred sixty-seven thousand, four hundred forty-nine".