61020003 has 8 divisors (see below), whose sum is σ = 88756416. Its totient is φ = 36981800.

The previous prime is 61019977. The next prime is 61020017. The reversal of 61020003 is 30002016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61020003 is a prime.

It is a super-2 number, since 2×61020003² = 7446881532240018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61020073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 924513 + ... + 924578.

It is an arithmetic number, because the mean of its divisors is an integer number (11094552).

Almost surely, 2^61020003 is an apocalyptic number.

61020003 is a deficient number, since it is larger than the sum of its proper divisors (27736413).

61020003 is a wasteful number, since it uses less digits than its factorization.

61020003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1849105.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 61020003 is about 7811.5301317988. The cubic root of 61020003 is about 393.6927418882.

Adding to 61020003 its reverse (30002016), we get a palindrome (91022019).

The spelling of 61020003 in words is "sixty-one million, twenty thousand, three".