61309214 has 16 divisors (see below), whose sum is σ = 97182720. Its totient is φ = 28948920.

The previous prime is 61309177. The next prime is 61309217. The reversal of 61309214 is 41290316.

61309214 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61309217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4802 + ... + 12069.

It is an arithmetic number, because the mean of its divisors is an integer number (6073920).

Almost surely, 2^61309214 is an apocalyptic number.

61309214 is a deficient number, since it is larger than the sum of its proper divisors (35873506).

61309214 is a wasteful number, since it uses less digits than its factorization.

61309214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16975.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 61309214 is about 7830.0200510599. The cubic root of 61309214 is about 394.3137451316.

The spelling of 61309214 in words is "sixty-one million, three hundred nine thousand, two hundred fourteen".