142914991 has 8 divisors (see below), whose sum is σ = 147680768. Its totient is φ = 138159000.

The previous prime is 142914983. The next prime is 142914997. The reversal of 142914991 is 199419241.

142914991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142914991 - 2³ = 142914983 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 (142914997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38236 + ... + 41806.

It is an arithmetic number, because the mean of its divisors is an integer number (18460096).

Almost surely, 2^142914991 is an apocalyptic number.

142914991 is a deficient number, since it is larger than the sum of its proper divisors (4765777).

142914991 is a wasteful number, since it uses less digits than its factorization.

142914991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4893.

The product of its digits is 23328, while the sum is 40.

The square root of 142914991 is about 11954.7058098474. The cubic root of 142914991 is about 522.8285103990.

The spelling of 142914991 in words is "one hundred forty-two million, nine hundred fourteen thousand, nine hundred ninety-one".