145818893 has 8 divisors (see below), whose sum is σ = 159239136. Its totient is φ = 132426000.

The previous prime is 145818859. The next prime is 145818899. The reversal of 145818893 is 398818541.

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

It is not a de Polignac number, because 145818893 - 2¹⁴ = 145802509 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 (145818899) 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, 5255 + ... + 17867.

It is an arithmetic number, because the mean of its divisors is an integer number (19904892).

Almost surely, 2^145818893 is an apocalyptic number.

It is an amenable number.

145818893 is a deficient number, since it is larger than the sum of its proper divisors (13420243).

145818893 is a wasteful number, since it uses less digits than its factorization.

145818893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13675.

The product of its digits is 276480, while the sum is 47.

The square root of 145818893 is about 12075.5493870879. The cubic root of 145818893 is about 526.3459258335.

The spelling of 145818893 in words is "one hundred forty-five million, eight hundred eighteen thousand, eight hundred ninety-three".