61000450 has 48 divisors (see below), whose sum is σ = 136509120. Its totient is φ = 19811520.

The previous prime is 61000441. The next prime is 61000477. The reversal of 61000450 is 5400016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2064 + ... + 11236.

It is an arithmetic number, because the mean of its divisors is an integer number (2843940).

Almost surely, 2^61000450 is an apocalyptic number.

61000450 is an abundant number, since it is smaller than the sum of its proper divisors (75508670).

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

61000450 is a wasteful number, since it uses less digits than its factorization.

61000450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9211 (or 9206 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 61000450 is about 7810.2784841515. The cubic root of 61000450 is about 393.6506862989.

Adding to 61000450 its reverse (5400016), we get a palindrome (66400466).

The spelling of 61000450 in words is "sixty-one million, four hundred fifty", and thus it is an aban number.