61448261 has 16 divisors (see below), whose sum is σ = 74947200. Its totient is φ = 49206528.

The previous prime is 61448227. The next prime is 61448263. The reversal of 61448261 is 16284416.

It is not a de Polignac number, because 61448261 - 2⁶ = 61448197 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 (61448263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6545 + ... + 12873.

It is an arithmetic number, because the mean of its divisors is an integer number (4684200).

Almost surely, 2^61448261 is an apocalyptic number.

It is an amenable number.

61448261 is a deficient number, since it is larger than the sum of its proper divisors (13498939).

61448261 is a wasteful number, since it uses less digits than its factorization.

61448261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6428.

The product of its digits is 9216, while the sum is 32.

The square root of 61448261 is about 7838.8941184328. The cubic root of 61448261 is about 394.6116163242.

The spelling of 61448261 in words is "sixty-one million, four hundred forty-eight thousand, two hundred sixty-one".