61103523 has 16 divisors (see below), whose sum is σ = 88978176. Its totient is φ = 37070880.

The previous prime is 61103513. The next prime is 61103587. The reversal of 61103523 is 32530116.

It is not a de Polignac number, because 61103523 - 2⁸ = 61103267 is a prime.

61103523 is a modest number, since divided by 3523 gives 611 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 61103523.

It is not an unprimeable number, because it can be changed into a prime (61103513) 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, 8265 + ... + 13802.

It is an arithmetic number, because the mean of its divisors is an integer number (5561136).

Almost surely, 2^61103523 is an apocalyptic number.

61103523 is a deficient number, since it is larger than the sum of its proper divisors (27874653).

61103523 is a wasteful number, since it uses less digits than its factorization.

61103523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22154.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 61103523 is about 7816.8742474214. The cubic root of 61103523 is about 393.8722798852.

Adding to 61103523 its reverse (32530116), we get a palindrome (93633639).

The spelling of 61103523 in words is "sixty-one million, one hundred three thousand, five hundred twenty-three".