61615201 has 8 divisors (see below), whose sum is σ = 62557920. Its totient is φ = 60679488.

The previous prime is 61615189. The next prime is 61615217. The reversal of 61615201 is 10251616.

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 61615201 - 2⁹ = 61614689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61615241) 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, 17545 + ... + 20761.

It is an arithmetic number, because the mean of its divisors is an integer number (7819740).

Almost surely, 2^61615201 is an apocalyptic number.

It is an amenable number.

61615201 is a deficient number, since it is larger than the sum of its proper divisors (942719).

61615201 is a wasteful number, since it uses less digits than its factorization.

61615201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3503.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 61615201 is about 7849.5350817740. The cubic root of 61615201 is about 394.9686478347.

Adding to 61615201 its reverse (10251616), we get a palindrome (71866817).

It can be divided in two parts, 61615 and 201, that added together give a palindrome (61816).

The spelling of 61615201 in words is "sixty-one million, six hundred fifteen thousand, two hundred one".