61949173 has 24 divisors (see below), whose sum is σ = 77364000. Its totient is φ = 48894720.

The previous prime is 61949171. The next prime is 61949183. The reversal of 61949173 is 37194916.

It is not a de Polignac number, because 61949173 - 2¹ = 61949171 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 (61949171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40578 + ... + 42076.

It is an arithmetic number, because the mean of its divisors is an integer number (3223500).

Almost surely, 2^61949173 is an apocalyptic number.

It is an amenable number.

61949173 is a deficient number, since it is larger than the sum of its proper divisors (15414827).

61949173 is a wasteful number, since it uses less digits than its factorization.

61949173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557 (or 1540 counting only the distinct ones).

The product of its digits is 40824, while the sum is 40.

The square root of 61949173 is about 7870.7796945411. The cubic root of 61949173 is about 395.6809766919.

The spelling of 61949173 in words is "sixty-one million, nine hundred forty-nine thousand, one hundred seventy-three".