145893646 has 8 divisors (see below), whose sum is σ = 228355344. Its totient is φ = 69775200.

The previous prime is 145893619. The next prime is 145893653. The reversal of 145893646 is 646398541.

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

It is a Harshad number since it is a multiple of its sum of digits (46), and also a Moran number because the ratio is a prime number: 3171601 = 145893646 / (1 + 4 + 5 + 8 + 9 + 3 + 6 + 4 + 6).

It is a junction number, because it is equal to n+sod(n) for n = 145893596 and 145893605.

It is a congruent number.

It is an unprimeable number.

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, 1585755 + ... + 1585846.

It is an arithmetic number, because the mean of its divisors is an integer number (28544418).

Almost surely, 2^145893646 is an apocalyptic number.

145893646 is a deficient number, since it is larger than the sum of its proper divisors (82461698).

145893646 is a wasteful number, since it uses less digits than its factorization.

145893646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3171626.

The product of its digits is 622080, while the sum is 46.

The square root of 145893646 is about 12078.6442119966. The cubic root of 145893646 is about 526.4358529448.

The spelling of 145893646 in words is "one hundred forty-five million, eight hundred ninety-three thousand, six hundred forty-six".