142905622957 has 4 divisors (see below), whose sum is σ = 142907122780. Its totient is φ = 142904123136.

The previous prime is 142905622927. The next prime is 142905622967. The reversal of 142905622957 is 759226509241.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 121266918756 + 21638704201 = 348234^2 + 147101^2 .

It is a cyclic number.

It is not a de Polignac number, because 142905622957 - 2¹⁹ = 142905098669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142905622927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 596532 + ... + 801037.

It is an arithmetic number, because the mean of its divisors is an integer number (35726780695).

Almost surely, 2^142905622957 is an apocalyptic number.

It is an amenable number.

142905622957 is a deficient number, since it is larger than the sum of its proper divisors (1499823).

142905622957 is a wasteful number, since it uses less digits than its factorization.

142905622957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499822.

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 142905622957 in words is "one hundred forty-two billion, nine hundred five million, six hundred twenty-two thousand, nine hundred fifty-seven".