142935437 has 2 divisors, whose sum is σ = 142935438. Its totient is φ = 142935436.

The previous prime is 142935431. The next prime is 142935479. The reversal of 142935437 is 734539241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137686756 + 5248681 = 11734^2 + 2291^2 .

It is an emirp because it is prime and its reverse (734539241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142935437 - 2⁴ = 142935421 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142935437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142935431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71467718 + 71467719.

It is an arithmetic number, because the mean of its divisors is an integer number (71467719).

Almost surely, 2^142935437 is an apocalyptic number.

It is an amenable number.

142935437 is a deficient number, since it is larger than the sum of its proper divisors (1).

142935437 is an equidigital number, since it uses as much as digits as its factorization.

142935437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 38.

The square root of 142935437 is about 11955.5609236874. The cubic root of 142935437 is about 522.8534418680.

The spelling of 142935437 in words is "one hundred forty-two million, nine hundred thirty-five thousand, four hundred thirty-seven".