142211025 has 96 divisors (see below), whose sum is σ = 289267200. Its totient is φ = 67924800.

The previous prime is 142211011. The next prime is 142211057. The reversal of 142211025 is 520112241.

It is not a de Polignac number, because 142211025 - 2⁶ = 142210961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142210989 and 142211007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 794386 + ... + 794564.

It is an arithmetic number, because the mean of its divisors is an integer number (3013200).

Almost surely, 2^142211025 is an apocalyptic number.

142211025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142211025 is an abundant number, since it is smaller than the sum of its proper divisors (147056175).

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

142211025 is a wasteful number, since it uses less digits than its factorization.

142211025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 142211025 is about 11925.2264129450. The cubic root of 142211025 is about 521.9686531579.

Adding to 142211025 its reverse (520112241), we get a palindrome (662323266).

The spelling of 142211025 in words is "one hundred forty-two million, two hundred eleven thousand, twenty-five".