142190667 has 32 divisors (see below), whose sum is σ = 217512000. Its totient is φ = 91736064.

The previous prime is 142190663. The next prime is 142190681. The reversal of 142190667 is 766091241.

It is not a de Polignac number, because 142190667 - 2² = 142190663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142190663) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 316459 + ... + 316907.

It is an arithmetic number, because the mean of its divisors is an integer number (6797250).

Almost surely, 2^142190667 is an apocalyptic number.

142190667 is a deficient number, since it is larger than the sum of its proper divisors (75321333).

142190667 is a wasteful number, since it uses less digits than its factorization.

142190667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 142190667 is about 11924.3728136955. The cubic root of 142190667 is about 521.9437447634.

The spelling of 142190667 in words is "one hundred forty-two million, one hundred ninety thousand, six hundred sixty-seven".