142451693 has 2 divisors, whose sum is σ = 142451694. Its totient is φ = 142451692.

The previous prime is 142451681. The next prime is 142451707. The reversal of 142451693 is 396154241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142157929 + 293764 = 11923^2 + 542^2 .

It is a cyclic number.

It is not a de Polignac number, because 142451693 - 2⁴ = 142451677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142451623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71225846 + 71225847.

It is an arithmetic number, because the mean of its divisors is an integer number (71225847).

Almost surely, 2^142451693 is an apocalyptic number.

It is an amenable number.

142451693 is a deficient number, since it is larger than the sum of its proper divisors (1).

142451693 is an equidigital number, since it uses as much as digits as its factorization.

142451693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 35.

The square root of 142451693 is about 11935.3128572317. The cubic root of 142451693 is about 522.2629349695.

The spelling of 142451693 in words is "one hundred forty-two million, four hundred fifty-one thousand, six hundred ninety-three".