61213662 has 24 divisors (see below), whose sum is σ = 134230824. Its totient is φ = 20158224.

The previous prime is 61213661. The next prime is 61213667. The reversal of 61213662 is 26631216.

It is a super-2 number, since 2×61213662² = 7494224830900488, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61213661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18993 + ... + 21980.

It is an arithmetic number, because the mean of its divisors is an integer number (5592951).

Almost surely, 2^61213662 is an apocalyptic number.

61213662 is an abundant number, since it is smaller than the sum of its proper divisors (73017162).

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

61213662 is a wasteful number, since it uses less digits than its factorization.

61213662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41064 (or 41061 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 61213662 is about 7823.9160271567. The cubic root of 61213662 is about 394.1087892191.

Adding to 61213662 its reverse (26631216), we get a palindrome (87844878).

The spelling of 61213662 in words is "sixty-one million, two hundred thirteen thousand, six hundred sixty-two".