142413231 has 4 divisors (see below), whose sum is σ = 189884312. Its totient is φ = 94942152.

The previous prime is 142413137. The next prime is 142413239. The reversal of 142413231 is 132314241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132314241 = 3 ⋅44104747.

It is not a de Polignac number, because 142413231 - 2⁹ = 142412719 is a prime.

It is a super-2 number, since 2×142413231² = 40563056727718722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142413198 and 142413207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142413239) 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, 23735536 + ... + 23735541.

It is an arithmetic number, because the mean of its divisors is an integer number (47471078).

Almost surely, 2^142413231 is an apocalyptic number.

142413231 is a deficient number, since it is larger than the sum of its proper divisors (47471081).

142413231 is an equidigital number, since it uses as much as digits as its factorization.

142413231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47471080.

The product of its digits is 576, while the sum is 21.

The square root of 142413231 is about 11933.7014794237. The cubic root of 142413231 is about 522.2159270220.

Adding to 142413231 its reverse (132314241), we get a palindrome (274727472).

The spelling of 142413231 in words is "one hundred forty-two million, four hundred thirteen thousand, two hundred thirty-one".