61545242 has 16 divisors (see below), whose sum is σ = 100916064. Its totient is φ = 27918000.

The previous prime is 61545227. The next prime is 61545271. The reversal of 61545242 is 24254516.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9317 + ... + 14487.

It is an arithmetic number, because the mean of its divisors is an integer number (6307254).

Almost surely, 2^61545242 is an apocalyptic number.

61545242 is a deficient number, since it is larger than the sum of its proper divisors (39370822).

61545242 is a wasteful number, since it uses less digits than its factorization.

61545242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5725.

The product of its digits is 9600, while the sum is 29.

The square root of 61545242 is about 7845.0775649448. The cubic root of 61545242 is about 394.8191064034.

Adding to 61545242 its reverse (24254516), we get a palindrome (85799758).

The spelling of 61545242 in words is "sixty-one million, five hundred forty-five thousand, two hundred forty-two".