61233545 has 8 divisors (see below), whose sum is σ = 73679496. Its totient is φ = 48854016.

The previous prime is 61233539. The next prime is 61233547. The reversal of 61233545 is 54533216.

61233545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10010896 + 51222649 = 3164^2 + 7157^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 61233545 - 2¹² = 61229449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61233547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14552 + ... + 18281.

It is an arithmetic number, because the mean of its divisors is an integer number (9209937).

Almost surely, 2^61233545 is an apocalyptic number.

It is an amenable number.

61233545 is a deficient number, since it is larger than the sum of its proper divisors (12445951).

61233545 is a wasteful number, since it uses less digits than its factorization.

61233545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33211.

The product of its digits is 10800, while the sum is 29.

The square root of 61233545 is about 7825.1865792453. The cubic root of 61233545 is about 394.1514551672.

The spelling of 61233545 in words is "sixty-one million, two hundred thirty-three thousand, five hundred forty-five".