61610361 has 8 divisors (see below), whose sum is σ = 84797184. Its totient is φ = 39748560.

The previous prime is 61610359. The next prime is 61610383. The reversal of 61610361 is 16301616.

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

It is not a de Polignac number, because 61610361 - 2¹ = 61610359 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61612361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331146 + ... + 331331.

It is an arithmetic number, because the mean of its divisors is an integer number (10599648).

Almost surely, 2^61610361 is an apocalyptic number.

It is an amenable number.

61610361 is a deficient number, since it is larger than the sum of its proper divisors (23186823).

61610361 is a wasteful number, since it uses less digits than its factorization.

61610361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662511.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 61610361 is about 7849.2267772055. The cubic root of 61610361 is about 394.9583056990.

Adding to 61610361 its reverse (16301616), we get a palindrome (77911977).

The spelling of 61610361 in words is "sixty-one million, six hundred ten thousand, three hundred sixty-one".