142951 has 4 divisors (see below), whose sum is σ = 143992. Its totient is φ = 141912.

The previous prime is 142949. The next prime is 142963. The reversal of 142951 is 159241.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 159241 = 59 ⋅2699.

It is a cyclic number.

It is not a de Polignac number, because 142951 - 2¹ = 142949 is a prime.

It is a Duffinian number.

142951 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142981) 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, 276 + ... + 601.

It is an arithmetic number, because the mean of its divisors is an integer number (35998).

2¹⁴²⁹⁵¹ is an apocalyptic number.

142951 is a deficient number, since it is larger than the sum of its proper divisors (1041).

142951 is an equidigital number, since it uses as much as digits as its factorization.

142951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040.

The product of its digits is 360, while the sum is 22.

The square root of 142951 is about 378.0886139518. The cubic root of 142951 is about 52.2872417505.

Subtracting 142951 from its reverse (159241), we obtain a triangular number (16290 = T₁₈₀).

It can be divided in two parts, 14 and 2951, that multiplied together give a palindrome (41314).

The spelling of 142951 in words is "one hundred forty-two thousand, nine hundred fifty-one".