61097 has 4 divisors (see below), whose sum is σ = 61776. Its totient is φ = 60420.

The previous prime is 61091. The next prime is 61099. The reversal of 61097 is 79016.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61097 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (61091) 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, 179 + ... + 392.

It is an arithmetic number, because the mean of its divisors is an integer number (15444).

2⁶¹⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

61097 is a deficient number, since it is larger than the sum of its proper divisors (679).

61097 is a wasteful number, since it uses less digits than its factorization.

61097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 61097 is about 247.1780734612. The cubic root of 61097 is about 39.3858263670.

It can be divided in two parts, 6109 and 7, that added together give a palindrome (6116).

The spelling of 61097 in words is "sixty-one thousand, ninety-seven".