61125641 has 8 divisors (see below), whose sum is σ = 65304480. Its totient is φ = 57043008.

The previous prime is 61125637. The next prime is 61125703. The reversal of 61125641 is 14652116.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61125641 - 2² = 61125637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61125641.

It is not an unprimeable number, because it can be changed into a prime (61125241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22736 + ... + 25281.

It is an arithmetic number, because the mean of its divisors is an integer number (8163060).

Almost surely, 2^61125641 is an apocalyptic number.

It is an amenable number.

61125641 is a deficient number, since it is larger than the sum of its proper divisors (4178839).

61125641 is a wasteful number, since it uses less digits than its factorization.

61125641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48103.

The product of its digits is 1440, while the sum is 26.

The square root of 61125641 is about 7818.2888792881. The cubic root of 61125641 is about 393.9197982373.

Adding to 61125641 its reverse (14652116), we get a palindrome (75777757).

It can be divided in two parts, 611 and 25641, that multiplied together give a palindrome (15666651).

The spelling of 61125641 in words is "sixty-one million, one hundred twenty-five thousand, six hundred forty-one".