61109369 has 4 divisors (see below), whose sum is σ = 61234320. Its totient is φ = 60984420.

The previous prime is 61109333. The next prime is 61109429. The reversal of 61109369 is 96390116.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61109369 is a prime.

It is a super-2 number, since 2×61109369² = 7468709959156322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61109569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61739 + ... + 62720.

It is an arithmetic number, because the mean of its divisors is an integer number (15308580).

Almost surely, 2^61109369 is an apocalyptic number.

It is an amenable number.

61109369 is a deficient number, since it is larger than the sum of its proper divisors (124951).

61109369 is a wasteful number, since it uses less digits than its factorization.

61109369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124950.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 61109369 is about 7817.2481731105. The cubic root of 61109369 is about 393.8848405572.

The spelling of 61109369 in words is "sixty-one million, one hundred nine thousand, three hundred sixty-nine".