61065213 has 16 divisors (see below), whose sum is σ = 91886400. Its totient is φ = 35732480.

The previous prime is 61065211. The next prime is 61065223. The reversal of 61065213 is 31256016.

It is a cyclic number.

It is not a de Polignac number, because 61065213 - 2¹ = 61065211 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61065211) 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, 30948 + ... + 32861.

It is an arithmetic number, because the mean of its divisors is an integer number (5742900).

Almost surely, 2^61065213 is an apocalyptic number.

It is an amenable number.

61065213 is a deficient number, since it is larger than the sum of its proper divisors (30821187).

61065213 is a wasteful number, since it uses less digits than its factorization.

61065213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63852.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 61065213 is about 7814.4233952352. The cubic root of 61065213 is about 393.7899474713.

The spelling of 61065213 in words is "sixty-one million, sixty-five thousand, two hundred thirteen".