145887683 has 4 divisors (see below), whose sum is σ = 146157888. Its totient is φ = 145617480.

The previous prime is 145887673. The next prime is 145887713. The reversal of 145887683 is 386788541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 386788541 = 53 ⋅7297897.

It is a cyclic number.

It is not a de Polignac number, because 145887683 - 2⁶ = 145887619 is a prime.

It is a super-2 number, since 2×145887683² = 42566432102216978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145887673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134291 + ... + 135372.

It is an arithmetic number, because the mean of its divisors is an integer number (36539472).

Almost surely, 2^145887683 is an apocalyptic number.

145887683 is a deficient number, since it is larger than the sum of its proper divisors (270205).

145887683 is an equidigital number, since it uses as much as digits as its factorization.

145887683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270204.

The product of its digits is 1290240, while the sum is 50.

The square root of 145887683 is about 12078.3973688565. The cubic root of 145887683 is about 526.4286806430.

The spelling of 145887683 in words is "one hundred forty-five million, eight hundred eighty-seven thousand, six hundred eighty-three".