61016001 has 16 divisors (see below), whose sum is σ = 82798848. Its totient is φ = 39962000.

The previous prime is 61015993. The next prime is 61016003. The reversal of 61016001 is 10061016.

It is a cyclic number.

It is not a de Polignac number, because 61016001 - 2³ = 61015993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61016003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41326 + ... + 42776.

It is an arithmetic number, because the mean of its divisors is an integer number (5174928).

Almost surely, 2^61016001 is an apocalyptic number.

It is an amenable number.

61016001 is a deficient number, since it is larger than the sum of its proper divisors (21782847).

61016001 is a wasteful number, since it uses less digits than its factorization.

61016001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 61016001 is about 7811.2739677981. The cubic root of 61016001 is about 393.6841349139.

Adding to 61016001 its reverse (10061016), we get a palindrome (71077017).

The spelling of 61016001 in words is "sixty-one million, sixteen thousand, one".