61184279 has 4 divisors (see below), whose sum is σ = 65890776. Its totient is φ = 56477784.

The previous prime is 61184269. The next prime is 61184311. The reversal of 61184279 is 97248116.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61184279 - 2⁸ = 61184023 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 (61184219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2353229 + ... + 2353254.

It is an arithmetic number, because the mean of its divisors is an integer number (16472694).

Almost surely, 2^61184279 is an apocalyptic number.

61184279 is a deficient number, since it is larger than the sum of its proper divisors (4706497).

61184279 is a wasteful number, since it uses less digits than its factorization.

61184279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4706496.

The product of its digits is 24192, while the sum is 38.

The square root of 61184279 is about 7822.0380336585. The cubic root of 61184279 is about 394.0457207715.

The spelling of 61184279 in words is "sixty-one million, one hundred eighty-four thousand, two hundred seventy-nine".