61364109 has 8 divisors (see below), whose sum is σ = 83160352. Its totient is φ = 40238640.

The previous prime is 61364099. The next prime is 61364111. The reversal of 61364109 is 90146316.

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

It is not a de Polignac number, because 61364109 - 2⁵ = 61364077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61362109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167479 + ... + 167844.

It is an arithmetic number, because the mean of its divisors is an integer number (10395044).

Almost surely, 2^61364109 is an apocalyptic number.

It is an amenable number.

61364109 is a deficient number, since it is larger than the sum of its proper divisors (21796243).

61364109 is a wasteful number, since it uses less digits than its factorization.

61364109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335387.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 61364109 is about 7833.5246856061. The cubic root of 61364109 is about 394.4313968103.

The spelling of 61364109 in words is "sixty-one million, three hundred sixty-four thousand, one hundred nine".