61216254 has 24 divisors (see below), whose sum is σ = 144693432. Its totient is φ = 18550320.

The previous prime is 61216237. The next prime is 61216273. The reversal of 61216254 is 45261216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154389 + ... + 154784.

It is an arithmetic number, because the mean of its divisors is an integer number (6028893).

Almost surely, 2^61216254 is an apocalyptic number.

61216254 is an abundant number, since it is smaller than the sum of its proper divisors (83477178).

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

61216254 is a wasteful number, since it uses less digits than its factorization.

61216254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309192 (or 309189 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 61216254 is about 7824.0816713529. The cubic root of 61216254 is about 394.1143517876.

It can be divided in two parts, 612162 and 54, that added together give a palindrome (612216).

The spelling of 61216254 in words is "sixty-one million, two hundred sixteen thousand, two hundred fifty-four".