61161653 has 12 divisors (see below), whose sum is σ = 71354880. Its totient is φ = 52271352.

The previous prime is 61161649. The next prime is 61161671. The reversal of 61161653 is 35616116.

It is not a de Polignac number, because 61161653 - 2² = 61161649 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61161613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17138 + ... + 20396.

It is an arithmetic number, because the mean of its divisors is an integer number (5946240).

Almost surely, 2^61161653 is an apocalyptic number.

It is an amenable number.

61161653 is a deficient number, since it is larger than the sum of its proper divisors (10193227).

61161653 is a wasteful number, since it uses less digits than its factorization.

61161653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3656 (or 3649 counting only the distinct ones).

The product of its digits is 3240, while the sum is 29.

The square root of 61161653 is about 7820.5916016629. The cubic root of 61161653 is about 393.9971419652.

Adding to 61161653 its reverse (35616116), we get a palindrome (96777769).

The spelling of 61161653 in words is "sixty-one million, one hundred sixty-one thousand, six hundred fifty-three".