61142214 has 16 divisors (see below), whose sum is σ = 139753728. Its totient is φ = 17469192.

The previous prime is 61142203. The next prime is 61142219. The reversal of 61142214 is 41224116.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61142219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 727842 + ... + 727925.

It is an arithmetic number, because the mean of its divisors is an integer number (8734608).

Almost surely, 2^61142214 is an apocalyptic number.

61142214 is an abundant number, since it is smaller than the sum of its proper divisors (78611514).

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

61142214 is a wasteful number, since it uses less digits than its factorization.

61142214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455779.

The product of its digits is 384, while the sum is 21.

The square root of 61142214 is about 7819.3486941049. The cubic root of 61142214 is about 393.9553961892.

The spelling of 61142214 in words is "sixty-one million, one hundred forty-two thousand, two hundred fourteen".