61541863 has 8 divisors (see below), whose sum is σ = 62744000. Its totient is φ = 60346080.

The previous prime is 61541849. The next prime is 61541873. The reversal of 61541863 is 36814516.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61541863 - 2⁹ = 61541351 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 (61541803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21013 + ... + 23761.

It is an arithmetic number, because the mean of its divisors is an integer number (7843000).

Almost surely, 2^61541863 is an apocalyptic number.

61541863 is a deficient number, since it is larger than the sum of its proper divisors (1202137).

61541863 is a wasteful number, since it uses less digits than its factorization.

61541863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3177.

The product of its digits is 17280, while the sum is 34.

The square root of 61541863 is about 7844.8622040161. The cubic root of 61541863 is about 394.8118807261.

The spelling of 61541863 in words is "sixty-one million, five hundred forty-one thousand, eight hundred sixty-three".