61236573 has 4 divisors (see below), whose sum is σ = 81648768. Its totient is φ = 40824380.

The previous prime is 61236569. The next prime is 61236583. The reversal of 61236573 is 37563216.

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 not a de Polignac number, because 61236573 - 2² = 61236569 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61236503) 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, 10206093 + ... + 10206098.

It is an arithmetic number, because the mean of its divisors is an integer number (20412192).

Almost surely, 2^61236573 is an apocalyptic number.

It is an amenable number.

61236573 is a deficient number, since it is larger than the sum of its proper divisors (20412195).

61236573 is a wasteful number, since it uses less digits than its factorization.

61236573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20412194.

The product of its digits is 22680, while the sum is 33.

The square root of 61236573 is about 7825.3800546683. The cubic root of 61236573 is about 394.1579519925.

Adding to 61236573 its reverse (37563216), we get a palindrome (98799789).

The spelling of 61236573 in words is "sixty-one million, two hundred thirty-six thousand, five hundred seventy-three".