61520242 has 8 divisors (see below), whose sum is σ = 105463296. Its totient is φ = 26365812.

The previous prime is 61520237. The next prime is 61520243. The reversal of 61520242 is 24202516.

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

It is not an unprimeable number, because it can be changed into a prime (61520243) 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, 2197138 + ... + 2197165.

It is an arithmetic number, because the mean of its divisors is an integer number (13182912).

Almost surely, 2^61520242 is an apocalyptic number.

61520242 is a deficient number, since it is larger than the sum of its proper divisors (43943054).

61520242 is a wasteful number, since it uses less digits than its factorization.

61520242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4394312.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 61520242 is about 7843.4840472841. The cubic root of 61520242 is about 394.7656399662.

Adding to 61520242 its reverse (24202516), we get a palindrome (85722758).

The spelling of 61520242 in words is "sixty-one million, five hundred twenty thousand, two hundred forty-two".