61503163 has 8 divisors (see below), whose sum is σ = 63590400. Its totient is φ = 59422440.

The previous prime is 61503149. The next prime is 61503181. The reversal of 61503163 is 36130516.

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

It is a cyclic number.

It is not a de Polignac number, because 61503163 - 2⁵ = 61503131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61503103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24438 + ... + 26836.

It is an arithmetic number, because the mean of its divisors is an integer number (7948800).

Almost surely, 2^61503163 is an apocalyptic number.

61503163 is a deficient number, since it is larger than the sum of its proper divisors (2087237).

61503163 is a wasteful number, since it uses less digits than its factorization.

61503163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3257.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 61503163 is about 7842.3952336005. The cubic root of 61503163 is about 394.7291055067.

Adding to 61503163 its reverse (36130516), we get a palindrome (97633679).

The spelling of 61503163 in words is "sixty-one million, five hundred three thousand, one hundred sixty-three".