61142486 has 8 divisors (see below), whose sum is σ = 92373960. Its totient is φ = 30351168.

The previous prime is 61142483. The next prime is 61142491. The reversal of 61142486 is 68424116.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61142483) 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, 109691 + ... + 110246.

It is an arithmetic number, because the mean of its divisors is an integer number (11546745).

Almost surely, 2^61142486 is an apocalyptic number.

61142486 is a deficient number, since it is larger than the sum of its proper divisors (31231474).

61142486 is a wasteful number, since it uses less digits than its factorization.

61142486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220078.

The product of its digits is 9216, while the sum is 32.

The square root of 61142486 is about 7819.3660868385. The cubic root of 61142486 is about 393.9559803776.

The spelling of 61142486 in words is "sixty-one million, one hundred forty-two thousand, four hundred eighty-six".