142222064 has 40 divisors (see below), whose sum is σ = 289421952. Its totient is φ = 67573440.

The previous prime is 142222063. The next prime is 142222081. The reversal of 142222064 is 460222241.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142222063) 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, 58799 + ... + 61169.

Almost surely, 2^142222064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142222064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144710976).

142222064 is an abundant number, since it is smaller than the sum of its proper divisors (147199888).

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

142222064 is a wasteful number, since it uses less digits than its factorization.

142222064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565 (or 2559 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 142222064 is about 11925.6892463287. The cubic root of 142222064 is about 521.9821585873.

The spelling of 142222064 in words is "one hundred forty-two million, two hundred twenty-two thousand, sixty-four".