61002642 has 16 divisors (see below), whose sum is σ = 122458752. Its totient is φ = 20258640.

The previous prime is 61002583. The next prime is 61002649. The reversal of 61002642 is 24620016.

It is a happy number.

61002642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61002649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17133 + ... + 20384.

It is an arithmetic number, because the mean of its divisors is an integer number (7653672).

Almost surely, 2^61002642 is an apocalyptic number.

61002642 is an abundant number, since it is smaller than the sum of its proper divisors (61456110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61002642 is a wasteful number, since it uses less digits than its factorization.

61002642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37793.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 61002642 is about 7810.4188107937. The cubic root of 61002642 is about 393.6554014115.

Adding to 61002642 its reverse (24620016), we get a palindrome (85622658).

The spelling of 61002642 in words is "sixty-one million, two thousand, six hundred forty-two".