61001061 has 16 divisors (see below), whose sum is σ = 89467968. Its totient is φ = 36967920.

The previous prime is 61001053. The next prime is 61001089. The reversal of 61001061 is 16010016.

It is not a de Polignac number, because 61001061 - 2³ = 61001053 is a prime.

It is a super-2 number, since 2×61001061² = 7442258886251442, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61001061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61001051) 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, 3646 + ... + 11631.

It is an arithmetic number, because the mean of its divisors is an integer number (5591748).

Almost surely, 2^61001061 is an apocalyptic number.

It is an amenable number.

61001061 is a deficient number, since it is larger than the sum of its proper divisors (28466907).

61001061 is a wasteful number, since it uses less digits than its factorization.

61001061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15313 (or 15291 counting only the distinct ones).

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

The square root of 61001061 is about 7810.3175991761. The cubic root of 61001061 is about 393.6520006049.

Adding to 61001061 its reverse (16010016), we get a palindrome (77011077).

The spelling of 61001061 in words is "sixty-one million, one thousand, sixty-one".