142951637 has 2 divisors, whose sum is σ = 142951638. Its totient is φ = 142951636.

The previous prime is 142951621. The next prime is 142951639. The reversal of 142951637 is 736159241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139972561 + 2979076 = 11831^2 + 1726^2 .

It is a cyclic number.

It is not a de Polignac number, because 142951637 - 2⁴ = 142951621 is a prime.

Together with 142951639, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_8069474 and since 142951637 and 8069474 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142951637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142951639) 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 as a sum of consecutive naturals, namely, 71475818 + 71475819.

It is an arithmetic number, because the mean of its divisors is an integer number (71475819).

Almost surely, 2^142951637 is an apocalyptic number.

It is an amenable number.

142951637 is a deficient number, since it is larger than the sum of its proper divisors (1).

142951637 is an equidigital number, since it uses as much as digits as its factorization.

142951637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 38.

The square root of 142951637 is about 11956.2384134811. The cubic root of 142951637 is about 522.8731941561.

The spelling of 142951637 in words is "one hundred forty-two million, nine hundred fifty-one thousand, six hundred thirty-seven".