61143695 has 4 divisors (see below), whose sum is σ = 73372440. Its totient is φ = 48914952.

The previous prime is 61143631. The next prime is 61143697. The reversal of 61143695 is 59634116.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61143695 - 2⁶ = 61143631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61143697) 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, 6114365 + ... + 6114374.

It is an arithmetic number, because the mean of its divisors is an integer number (18343110).

Almost surely, 2^61143695 is an apocalyptic number.

61143695 is a deficient number, since it is larger than the sum of its proper divisors (12228745).

61143695 is a wasteful number, since it uses less digits than its factorization.

61143695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12228744.

The product of its digits is 19440, while the sum is 35.

The square root of 61143695 is about 7819.4433945134. The cubic root of 61143695 is about 393.9585769880.

The spelling of 61143695 in words is "sixty-one million, one hundred forty-three thousand, six hundred ninety-five".