61949273 has 4 divisors (see below), whose sum is σ = 62147508. Its totient is φ = 61751040.

The previous prime is 61949269. The next prime is 61949299. The reversal of 61949273 is 37294916.

61949273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2474329 + 59474944 = 1573^2 + 7712^2 .

It is a cyclic number.

It is not a de Polignac number, because 61949273 - 2² = 61949269 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61949273.

It is not an unprimeable number, because it can be changed into a prime (61949213) 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 in 3 ways as a sum of consecutive naturals, for example, 98648 + ... + 99273.

It is an arithmetic number, because the mean of its divisors is an integer number (15536877).

Almost surely, 2^61949273 is an apocalyptic number.

It is an amenable number.

61949273 is a deficient number, since it is larger than the sum of its proper divisors (198235).

61949273 is a wasteful number, since it uses less digits than its factorization.

61949273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198234.

The product of its digits is 81648, while the sum is 41.

The square root of 61949273 is about 7870.7860471493. The cubic root of 61949273 is about 395.6811895980.

The spelling of 61949273 in words is "sixty-one million, nine hundred forty-nine thousand, two hundred seventy-three".