61223010 has 32 divisors (see below), whose sum is σ = 153325440. Its totient is φ = 15616128.

The previous prime is 61223009. The next prime is 61223021. The reversal of 61223010 is 1032216.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 15 ways as a sum of consecutive naturals, for example, 43675 + ... + 45054.

It is an arithmetic number, because the mean of its divisors is an integer number (4791420).

Almost surely, 2^61223010 is an apocalyptic number.

61223010 is an abundant number, since it is smaller than the sum of its proper divisors (92102430).

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

61223010 is a wasteful number, since it uses less digits than its factorization.

61223010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88762.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 61223010 is about 7824.5134034009. The cubic root of 61223010 is about 394.1288497814.

Adding to 61223010 its reverse (1032216), we get a palindrome (62255226).

The spelling of 61223010 in words is "sixty-one million, two hundred twenty-three thousand, ten".