146989487 has 8 divisors (see below), whose sum is σ = 152527440. Its totient is φ = 141482880.

The previous prime is 146989483. The next prime is 146989489. The reversal of 146989487 is 784989641.

146989487 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 not a de Polignac number, because 146989487 - 2² = 146989483 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 (146989483) 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, 1943 + ... + 17255.

It is an arithmetic number, because the mean of its divisors is an integer number (19065930).

Almost surely, 2^146989487 is an apocalyptic number.

146989487 is a deficient number, since it is larger than the sum of its proper divisors (5537953).

146989487 is a wasteful number, since it uses less digits than its factorization.

146989487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15673.

The product of its digits is 3483648, while the sum is 56.

The square root of 146989487 is about 12123.9220964175. The cubic root of 146989487 is about 527.7506271421.

The spelling of 146989487 in words is "one hundred forty-six million, nine hundred eighty-nine thousand, four hundred eighty-seven".