145228683 has 8 divisors (see below), whose sum is σ = 198361296. Its totient is φ = 94457600.

The previous prime is 145228649. The next prime is 145228697. The reversal of 145228683 is 386822541.

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

It is a cyclic number.

It is not a de Polignac number, because 145228683 - 2²⁰ = 144180107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145228283) 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, 590238 + ... + 590483.

It is an arithmetic number, because the mean of its divisors is an integer number (24795162).

Almost surely, 2^145228683 is an apocalyptic number.

145228683 is a deficient number, since it is larger than the sum of its proper divisors (53132613).

145228683 is a wasteful number, since it uses less digits than its factorization.

145228683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180765.

The product of its digits is 92160, while the sum is 39.

The square root of 145228683 is about 12051.0863825632. The cubic root of 145228683 is about 525.6348275250.

It can be divided in two parts, 1452 and 28683, that added together give a triangular number (30135 = T₂₄₅).

The spelling of 145228683 in words is "one hundred forty-five million, two hundred twenty-eight thousand, six hundred eighty-three".