142157975 has 18 divisors (see below), whose sum is σ = 179392536. Its totient is φ = 111728400.

The previous prime is 142157891. The next prime is 142157989. The reversal of 142157975 is 579751241.

It is not a de Polignac number, because 142157975 - 2¹⁴ = 142141591 is a prime.

It is a super-2 number, since 2×142157975² = 40417779712201250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 17 ways as a sum of consecutive naturals, for example, 502184 + ... + 502466.

It is an arithmetic number, because the mean of its divisors is an integer number (9966252).

Almost surely, 2^142157975 is an apocalyptic number.

142157975 is a deficient number, since it is larger than the sum of its proper divisors (37234561).

142157975 is an frugal number, since it uses more digits than its factorization.

142157975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647 (or 359 counting only the distinct ones).

The product of its digits is 88200, while the sum is 41.

The square root of 142157975 is about 11923.0019290445. The cubic root of 142157975 is about 521.9037405138.

The spelling of 142157975 in words is "one hundred forty-two million, one hundred fifty-seven thousand, nine hundred seventy-five".