7142437 has 2 divisors, whose sum is σ = 7142438. Its totient is φ = 7142436.

The previous prime is 7142419. The next prime is 7142479. The reversal of 7142437 is 7342417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6625476 + 516961 = 2574^2 + 719^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7142437 is a prime.

It is an Ulam number.

7142437 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7146437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3571218 + 3571219.

It is an arithmetic number, because the mean of its divisors is an integer number (3571219).

Almost surely, 2^7142437 is an apocalyptic number.

It is an amenable number.

7142437 is a deficient number, since it is larger than the sum of its proper divisors (1).

7142437 is an equidigital number, since it uses as much as digits as its factorization.

7142437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4704, while the sum is 28.

The square root of 7142437 is about 2672.5338164371. The cubic root of 7142437 is about 192.5819025182.

The spelling of 7142437 in words is "seven million, one hundred forty-two thousand, four hundred thirty-seven".