142225351 has 4 divisors (see below), whose sum is σ = 145694304. Its totient is φ = 138756400.

The previous prime is 142225333. The next prime is 142225357. The reversal of 142225351 is 153522241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 153522241 = 89 ⋅1724969.

It is a cyclic number.

It is not a de Polignac number, because 142225351 - 2⁵ = 142225319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142225357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1734415 + ... + 1734496.

It is an arithmetic number, because the mean of its divisors is an integer number (36423576).

Almost surely, 2^142225351 is an apocalyptic number.

142225351 is a deficient number, since it is larger than the sum of its proper divisors (3468953).

142225351 is an equidigital number, since it uses as much as digits as its factorization.

142225351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3468952.

The product of its digits is 2400, while the sum is 25.

The square root of 142225351 is about 11925.8270572736. The cubic root of 142225351 is about 521.9861798624.

Adding to 142225351 its reverse (153522241), we get a palindrome (295747592).

The spelling of 142225351 in words is "one hundred forty-two million, two hundred twenty-five thousand, three hundred fifty-one".