61461653 has 4 divisors (see below), whose sum is σ = 67049088. Its totient is φ = 55874220.

The previous prime is 61461607. The next prime is 61461661. The reversal of 61461653 is 35616416.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61461653 - 2¹⁰ = 61460629 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 (61461683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2793701 + ... + 2793722.

It is an arithmetic number, because the mean of its divisors is an integer number (16762272).

Almost surely, 2^61461653 is an apocalyptic number.

It is an amenable number.

61461653 is a deficient number, since it is larger than the sum of its proper divisors (5587435).

61461653 is a wasteful number, since it uses less digits than its factorization.

61461653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5587434.

The product of its digits is 12960, while the sum is 32.

The square root of 61461653 is about 7839.7482740200. The cubic root of 61461653 is about 394.6402813877.

The spelling of 61461653 in words is "sixty-one million, four hundred sixty-one thousand, six hundred fifty-three".