142254931 has 16 divisors (see below), whose sum is σ = 182697984. Its totient is φ = 107658144.

The previous prime is 142254911. The next prime is 142254941. The reversal of 142254931 is 139452241.

142254931 = 1736² + 1737² + ... + 1781².

142254931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 142254931 - 2¹³ = 142246739 is a prime.

It is a super-2 number, since 2×142254931² = 40472930787629522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142254893 and 142254902.

It is not an unprimeable number, because it can be changed into a prime (142254901) 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, 31891 + ... + 36076.

It is an arithmetic number, because the mean of its divisors is an integer number (11418624).

Almost surely, 2^142254931 is an apocalyptic number.

142254931 is a deficient number, since it is larger than the sum of its proper divisors (40443053).

142254931 is a wasteful number, since it uses less digits than its factorization.

142254931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68010.

The product of its digits is 8640, while the sum is 31.

The square root of 142254931 is about 11927.0671583588. The cubic root of 142254931 is about 522.0223648810.

The spelling of 142254931 in words is "one hundred forty-two million, two hundred fifty-four thousand, nine hundred thirty-one".