142826401 has 27 divisors (see below), whose sum is σ = 164572569. Its totient is φ = 123907968.

The previous prime is 142826381. The next prime is 142826413. The reversal of 142826401 is 104628241.

The square root of 142826401 is 11951.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 66438801 + 76387600 = 8151^2 + 8740^2 .

It is not a de Polignac number, because 142826401 - 2⁷ = 142826273 is a prime.

It is a super-2 number, since 2×142826401² = 40798761645225602, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142826401.

It is not an unprimeable number, because it can be changed into a prime (142826501) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3860155 + ... + 3860191.

Almost surely, 2^142826401 is an apocalyptic number.

142826401 is the 11951-st square number.

142826401 is the 5976-th centered octagonal number.

It is an amenable number.

142826401 is a deficient number, since it is larger than the sum of its proper divisors (21746168).

142826401 is an equidigital number, since it uses as much as digits as its factorization.

142826401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The cubic root of 142826401 is about 522.7204579335.

The spelling of 142826401 in words is "one hundred forty-two million, eight hundred twenty-six thousand, four hundred one".