102223142 has 16 divisors (see below), whose sum is σ = 185548320. Its totient is φ = 41232768.

The previous prime is 102223111. The next prime is 102223183. The reversal of 102223142 is 241322201.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 102223142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214517 + ... + 214992.

It is an arithmetic number, because the mean of its divisors is an integer number (11596770).

Almost surely, 2^102223142 is an apocalyptic number.

102223142 is a deficient number, since it is larger than the sum of its proper divisors (83325178).

102223142 is a wasteful number, since it uses less digits than its factorization.

102223142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429535.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 102223142 is about 10110.5460782294. The cubic root of 102223142 is about 467.5733412728.

Adding to 102223142 its reverse (241322201), we get a palindrome (343545343).

The spelling of 102223142 in words is "one hundred two million, two hundred twenty-three thousand, one hundred forty-two".