61371603 has 6 divisors (see below), whose sum is σ = 88647884. Its totient is φ = 40914396.

The previous prime is 61371601. The next prime is 61371631. The reversal of 61371603 is 30617316.

It is not a de Polignac number, because 61371603 - 2¹ = 61371601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61371601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3409525 + ... + 3409542.

Almost surely, 2^61371603 is an apocalyptic number.

61371603 is a deficient number, since it is larger than the sum of its proper divisors (27276281).

61371603 is a wasteful number, since it uses less digits than its factorization.

61371603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6819073 (or 6819070 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 61371603 is about 7834.0029997441. The cubic root of 61371603 is about 394.4474526048.

Adding to 61371603 its reverse (30617316), we get a palindrome (91988919).

The spelling of 61371603 in words is "sixty-one million, three hundred seventy-one thousand, six hundred three".