142457629 has 2 divisors, whose sum is σ = 142457630. Its totient is φ = 142457628.

The previous prime is 142457621. The next prime is 142457633. The reversal of 142457629 is 926754241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142205625 + 252004 = 11925^2 + 502^2 .

It is a cyclic number.

It is not a de Polignac number, because 142457629 - 2³ = 142457621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142457591 and 142457600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142457621) 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, 71228814 + 71228815.

It is an arithmetic number, because the mean of its divisors is an integer number (71228815).

Almost surely, 2^142457629 is an apocalyptic number.

It is an amenable number.

142457629 is a deficient number, since it is larger than the sum of its proper divisors (1).

142457629 is an equidigital number, since it uses as much as digits as its factorization.

142457629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The square root of 142457629 is about 11935.5615284745. The cubic root of 142457629 is about 522.2701891473.

The spelling of 142457629 in words is "one hundred forty-two million, four hundred fifty-seven thousand, six hundred twenty-nine".