61445242 has 8 divisors (see below), whose sum is σ = 97589556. Its totient is φ = 28915392.

The previous prime is 61445233. The next prime is 61445261. The reversal of 61445242 is 24254416.

It can be written as a sum of positive squares in 2 ways, for example, as 58201641 + 3243601 = 7629^2 + 1801^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 61445242.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 903573 + ... + 903640.

Almost surely, 2^61445242 is an apocalyptic number.

61445242 is a deficient number, since it is larger than the sum of its proper divisors (36144314).

61445242 is a wasteful number, since it uses less digits than its factorization.

61445242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807232.

The product of its digits is 7680, while the sum is 28.

The square root of 61445242 is about 7838.7015506396. The cubic root of 61445242 is about 394.6051536950.

Adding to 61445242 its reverse (24254416), we get a palindrome (85699658).

The spelling of 61445242 in words is "sixty-one million, four hundred forty-five thousand, two hundred forty-two".