142462231 has 4 divisors (see below), whose sum is σ = 142693000. Its totient is φ = 142231464.

The previous prime is 142462183. The next prime is 142462241. The reversal of 142462231 is 132264241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132264241 = 1291 ⋅102451.

It is a cyclic number.

It is not a de Polignac number, because 142462231 - 2²¹ = 140365079 is a prime.

It is a super-2 number, since 2×142462231² = 40590974522994722, 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 = 142462196 and 142462205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142462241) 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, 114456 + ... + 115693.

It is an arithmetic number, because the mean of its divisors is an integer number (35673250).

Almost surely, 2^142462231 is an apocalyptic number.

142462231 is a deficient number, since it is larger than the sum of its proper divisors (230769).

142462231 is an equidigital number, since it uses as much as digits as its factorization.

142462231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230768.

The product of its digits is 2304, while the sum is 25.

The square root of 142462231 is about 11935.7543121497. The cubic root of 142462231 is about 522.2758129518.

The spelling of 142462231 in words is "one hundred forty-two million, four hundred sixty-two thousand, two hundred thirty-one".