61222478 has 8 divisors (see below), whose sum is σ = 92300472. Its totient is φ = 30455656.

The previous prime is 61222439. The next prime is 61222507. The reversal of 61222478 is 87422216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77300 + ... + 78087.

It is an arithmetic number, because the mean of its divisors is an integer number (11537559).

Almost surely, 2^61222478 is an apocalyptic number.

61222478 is a deficient number, since it is larger than the sum of its proper divisors (31077994).

61222478 is a wasteful number, since it uses less digits than its factorization.

61222478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155586.

The product of its digits is 10752, while the sum is 32.

The square root of 61222478 is about 7824.4794076028. The cubic root of 61222478 is about 394.1277081782.

The spelling of 61222478 in words is "sixty-one million, two hundred twenty-two thousand, four hundred seventy-eight".