61213614 has 64 divisors (see below), whose sum is σ = 156805632. Its totient is φ = 15465600.

The previous prime is 61213571. The next prime is 61213627. The reversal of 61213614 is 41631216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15304 + ... + 18884.

It is an arithmetic number, because the mean of its divisors is an integer number (2450088).

Almost surely, 2^61213614 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61213614, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78402816).

61213614 is an abundant number, since it is smaller than the sum of its proper divisors (95592018).

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

61213614 is a wasteful number, since it uses less digits than its factorization.

61213614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3641.

The product of its digits is 864, while the sum is 24.

The square root of 61213614 is about 7823.9129596385. The cubic root of 61213614 is about 394.1086862071.

The spelling of 61213614 in words is "sixty-one million, two hundred thirteen thousand, six hundred fourteen".