61841213 has 8 divisors (see below), whose sum is σ = 71671680. Its totient is φ = 52259760.

The previous prime is 61841207. The next prime is 61841231. The reversal of 61841213 is 31214816.

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

It is not a de Polignac number, because 61841213 - 2⁶ = 61841149 is a prime.

It is a super-2 number, since 2×61841213² = 7648671250622738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61841203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61718 + ... + 62711.

It is an arithmetic number, because the mean of its divisors is an integer number (8958960).

Almost surely, 2^61841213 is an apocalyptic number.

It is an amenable number.

61841213 is a deficient number, since it is larger than the sum of its proper divisors (9830467).

61841213 is a wasteful number, since it uses less digits than its factorization.

61841213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124507.

The product of its digits is 1152, while the sum is 26.

The square root of 61841213 is about 7863.9184253144. The cubic root of 61841213 is about 395.4509894554.

The spelling of 61841213 in words is "sixty-one million, eight hundred forty-one thousand, two hundred thirteen".