61516103 has 4 divisors (see below), whose sum is σ = 67108488. Its totient is φ = 55923720.

The previous prime is 61516097. The next prime is 61516109. The reversal of 61516103 is 30161516.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (61516097) and next prime (61516109).

It is a cyclic number.

It is not a de Polignac number, because 61516103 - 2⁴ = 61516087 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 (61516109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2796176 + ... + 2796197.

It is an arithmetic number, because the mean of its divisors is an integer number (16777122).

Almost surely, 2^61516103 is an apocalyptic number.

61516103 is a deficient number, since it is larger than the sum of its proper divisors (5592385).

61516103 is a wasteful number, since it uses less digits than its factorization.

61516103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5592384.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 61516103 is about 7843.2201932625. The cubic root of 61516103 is about 394.7567866654.

Adding to 61516103 its reverse (30161516), we get a palindrome (91677619).

The spelling of 61516103 in words is "sixty-one million, five hundred sixteen thousand, one hundred three".