145887 has 8 divisors (see below), whose sum is σ = 222336. Its totient is φ = 83352.

The previous prime is 145879. The next prime is 145897. The reversal of 145887 is 788541.

It is a happy number.

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

It is not a de Polignac number, because 145887 - 2³ = 145879 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145807) 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, 3453 + ... + 3494.

It is an arithmetic number, because the mean of its divisors is an integer number (27792).

2¹⁴⁵⁸⁸⁷ is an apocalyptic number.

145887 is a deficient number, since it is larger than the sum of its proper divisors (76449).

145887 is an equidigital number, since it uses as much as digits as its factorization.

145887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6957.

The product of its digits is 8960, while the sum is 33.

The square root of 145887 is about 381.9515676103. The cubic root of 145887 is about 52.6427859118.

The spelling of 145887 in words is "one hundred forty-five thousand, eight hundred eighty-seven".