146887031 has 4 divisors (see below), whose sum is σ = 147873000. Its totient is φ = 145901064.

The previous prime is 146887007. The next prime is 146887063. The reversal of 146887031 is 130788641.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146887031 is a prime.

It is a super-2 number, since 2×146887031² = 43151599751989922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146887931) 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 3 ways as a sum of consecutive naturals, for example, 492761 + ... + 493058.

It is an arithmetic number, because the mean of its divisors is an integer number (36968250).

Almost surely, 2^146887031 is an apocalyptic number.

146887031 is a deficient number, since it is larger than the sum of its proper divisors (985969).

146887031 is an equidigital number, since it uses as much as digits as its factorization.

146887031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985968.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 146887031 is about 12119.6959945372. The cubic root of 146887031 is about 527.6279793998.

The spelling of 146887031 in words is "one hundred forty-six million, eight hundred eighty-seven thousand, thirty-one".