142793129 has 4 divisors (see below), whose sum is σ = 147717060. Its totient is φ = 137869200.

The previous prime is 142793083. The next prime is 142793137. The reversal of 142793129 is 921397241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 93161104 + 49632025 = 9652^2 + 7045^2 .

It is a cyclic number.

It is not a de Polignac number, because 142793129 - 2¹² = 142789033 is a prime.

It is a super-2 number, since 2×142793129² = 40779755379221282, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 142793092 and 142793101.

It is not an unprimeable number, because it can be changed into a prime (142793159) 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, 2461922 + ... + 2461979.

It is an arithmetic number, because the mean of its divisors is an integer number (36929265).

Almost surely, 2^142793129 is an apocalyptic number.

It is an amenable number.

142793129 is a deficient number, since it is larger than the sum of its proper divisors (4923931).

142793129 is an equidigital number, since it uses as much as digits as its factorization.

142793129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4923930.

The product of its digits is 27216, while the sum is 38.

The square root of 142793129 is about 11949.6079015171. The cubic root of 142793129 is about 522.6798648180.

The spelling of 142793129 in words is "one hundred forty-two million, seven hundred ninety-three thousand, one hundred twenty-nine".