142626233 has 4 divisors (see below), whose sum is σ = 145317348. Its totient is φ = 139935120.

The previous prime is 142626223. The next prime is 142626259. The reversal of 142626233 is 332626241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332626241 = 2237 ⋅148693.

It can be written as a sum of positive squares in 2 ways, for example, as 51079609 + 91546624 = 7147^2 + 9568^2 .

It is a cyclic number.

It is not a de Polignac number, because 142626233 - 2²⁶ = 75517369 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 142626196 and 142626205.

It is not an unprimeable number, because it can be changed into a prime (142626223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1345478 + ... + 1345583.

It is an arithmetic number, because the mean of its divisors is an integer number (36329337).

Almost surely, 2^142626233 is an apocalyptic number.

It is an amenable number.

142626233 is a deficient number, since it is larger than the sum of its proper divisors (2691115).

142626233 is an equidigital number, since it uses as much as digits as its factorization.

142626233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2691114.

The product of its digits is 10368, while the sum is 29.

The square root of 142626233 is about 11942.6225344352. The cubic root of 142626233 is about 522.4761500984.

The spelling of 142626233 in words is "one hundred forty-two million, six hundred twenty-six thousand, two hundred thirty-three".