142892991 has 12 divisors (see below), whose sum is σ = 214045832. Its totient is φ = 95261832.

The previous prime is 142892969. The next prime is 142893061. The reversal of 142892991 is 199298241.

It is not a de Polignac number, because 142892991 - 2¹³ = 142884799 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 (142892921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 293776 + ... + 294261.

Almost surely, 2^142892991 is an apocalyptic number.

142892991 is a deficient number, since it is larger than the sum of its proper divisors (71152841).

142892991 is an frugal number, since it uses more digits than its factorization.

142892991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588052 (or 588040 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 142892991 is about 11953.7856346849. The cubic root of 142892991 is about 522.8016813556.

The spelling of 142892991 in words is "one hundred forty-two million, eight hundred ninety-two thousand, nine hundred ninety-one".