61142022 has 24 divisors (see below), whose sum is σ = 132646176. Its totient is φ = 20354256.

The previous prime is 61142017. The next prime is 61142077. The reversal of 61142022 is 22024116.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 61141986 and 61142004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16243 + ... + 19649.

It is an arithmetic number, because the mean of its divisors is an integer number (5526924).

Almost surely, 2^61142022 is an apocalyptic number.

61142022 is an abundant number, since it is smaller than the sum of its proper divisors (71504154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61142022 is a wasteful number, since it uses less digits than its factorization.

61142022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4412 (or 4409 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 61142022 is about 7819.3364168579. The cubic root of 61142022 is about 393.9549838199.

Adding to 61142022 its reverse (22024116), we get a palindrome (83166138).

The spelling of 61142022 in words is "sixty-one million, one hundred forty-two thousand, twenty-two".