61369 has 8 divisors (see below), whose sum is σ = 76608. Its totient is φ = 47760.

The previous prime is 61363. The next prime is 61379. The reversal of 61369 is 96316.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61369 is a prime.

It is a super-2 number, since 2×61369² = 7532308322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61363) 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, 322 + ... + 475.

It is an arithmetic number, because the mean of its divisors is an integer number (9576).

2⁶¹³⁶⁹ is an apocalyptic number.

It is an amenable number.

61369 is a deficient number, since it is larger than the sum of its proper divisors (15239).

61369 is a wasteful number, since it uses less digits than its factorization.

61369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815.

The product of its digits is 972, while the sum is 25.

The square root of 61369 is about 247.7276730606. The cubic root of 61369 is about 39.4441875860. Note that the first 3 decimals are identical.

The spelling of 61369 in words is "sixty-one thousand, three hundred sixty-nine".