142225473 has 16 divisors (see below), whose sum is σ = 206248896. Its totient is φ = 86654400.

The previous prime is 142225441. The next prime is 142225493. The reversal of 142225473 is 374522241.

It is not a de Polignac number, because 142225473 - 2⁵ = 142225441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142225473.

It is not an unprimeable number, because it can be changed into a prime (142225493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14115 + ... + 21992.

It is an arithmetic number, because the mean of its divisors is an integer number (12890556).

Almost surely, 2^142225473 is an apocalyptic number.

142225473 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

142225473 is a deficient number, since it is larger than the sum of its proper divisors (64023423).

142225473 is a wasteful number, since it uses less digits than its factorization.

142225473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36224.

The product of its digits is 13440, while the sum is 30.

The square root of 142225473 is about 11925.8321722218. The cubic root of 142225473 is about 521.9863291145.

The spelling of 142225473 in words is "one hundred forty-two million, two hundred twenty-five thousand, four hundred seventy-three".