61020603 has 24 divisors (see below), whose sum is σ = 101189088. Its totient is φ = 34710912.

The previous prime is 61020581. The next prime is 61020623. The reversal of 61020603 is 30602016.

It is a happy number.

61020603 is a `hidden beast` number, since 61 + 0 + 2 + 0 + 603 = 666.

It is not a de Polignac number, because 61020603 - 2⁶ = 61020539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61020623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12601 + ... + 16757.

It is an arithmetic number, because the mean of its divisors is an integer number (4216212).

Almost surely, 2^61020603 is an apocalyptic number.

61020603 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

61020603 is a deficient number, since it is larger than the sum of its proper divisors (40168485).

61020603 is a wasteful number, since it uses less digits than its factorization.

61020603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4403 (or 4400 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 61020603 is about 7811.5685364720. The cubic root of 61020603 is about 393.6940322567.

Adding to 61020603 its reverse (30602016), we get a palindrome (91622619).

The spelling of 61020603 in words is "sixty-one million, twenty thousand, six hundred three".