142166026 has 8 divisors (see below), whose sum is σ = 213428484. Its totient is φ = 71023200.

The previous prime is 142165997. The next prime is 142166029. The reversal of 142166026 is 620661241.

It can be written as a sum of positive squares in 2 ways, for example, as 127351225 + 14814801 = 11285^2 + 3849^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×142166026² = 40422357897265352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142165985 and 142166003.

It is not an unprimeable number, because it can be changed into a prime (142166029) 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, 26875 + ... + 31726.

Almost surely, 2^142166026 is an apocalyptic number.

142166026 is a deficient number, since it is larger than the sum of its proper divisors (71262458).

142166026 is a wasteful number, since it uses less digits than its factorization.

142166026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59816.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 142166026 is about 11923.3395489687. The cubic root of 142166026 is about 521.9135928575.

The spelling of 142166026 in words is "one hundred forty-two million, one hundred sixty-six thousand, twenty-six".