61002043 has 4 divisors (see below), whose sum is σ = 61019800. Its totient is φ = 60984288.

The previous prime is 61002041. The next prime is 61002077. The reversal of 61002043 is 34020016.

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

It is a cyclic number.

It is not a de Polignac number, because 61002043 - 2¹ = 61002041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61002041) 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, 1893 + ... + 11206.

It is an arithmetic number, because the mean of its divisors is an integer number (15254950).

Almost surely, 2^61002043 is an apocalyptic number.

61002043 is a deficient number, since it is larger than the sum of its proper divisors (17757).

61002043 is a wasteful number, since it uses less digits than its factorization.

61002043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17756.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 61002043 is about 7810.3804644844. The cubic root of 61002043 is about 393.6541129408.

Adding to 61002043 its reverse (34020016), we get a palindrome (95022059).

The spelling of 61002043 in words is "sixty-one million, two thousand, forty-three".