61541263 has 16 divisors (see below), whose sum is σ = 72205056. Its totient is φ = 51364800.

The previous prime is 61541257. The next prime is 61541273. The reversal of 61541263 is 36214516.

It is a cyclic number.

It is not a de Polignac number, because 61541263 - 2¹³ = 61533071 is a prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61541273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41688 + ... + 43138.

It is an arithmetic number, because the mean of its divisors is an integer number (4512816).

Almost surely, 2^61541263 is an apocalyptic number.

61541263 is a deficient number, since it is larger than the sum of its proper divisors (10663793).

61541263 is a wasteful number, since it uses less digits than its factorization.

61541263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614.

The product of its digits is 4320, while the sum is 28.

The square root of 61541263 is about 7844.8239623334. The cubic root of 61541263 is about 394.8105976542.

Adding to 61541263 its reverse (36214516), we get a palindrome (97755779).

The spelling of 61541263 in words is "sixty-one million, five hundred forty-one thousand, two hundred sixty-three".