561153103 has 32 divisors (see below), whose sum is σ = 714792960. Its totient is φ = 429770880.

The previous prime is 561153079. The next prime is 561153107. The reversal of 561153103 is 301351165.

It is not a de Polignac number, because 561153103 - 2¹⁷ = 561022031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561153107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142801 + ... + 146677.

It is an arithmetic number, because the mean of its divisors is an integer number (22337280).

Almost surely, 2^561153103 is an apocalyptic number.

561153103 is a deficient number, since it is larger than the sum of its proper divisors (153639857).

561153103 is a wasteful number, since it uses less digits than its factorization.

561153103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3967.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 561153103 is about 23688.6703510349. The cubic root of 561153103 is about 824.8224180989.

It can be divided in two parts, 561 and 153103, that added together give a square (153664 = 392²).

The spelling of 561153103 in words is "five hundred sixty-one million, one hundred fifty-three thousand, one hundred three".