145339583 has 4 divisors (see below), whose sum is σ = 146625888. Its totient is φ = 144053280.

The previous prime is 145339577. The next prime is 145339591. The reversal of 145339583 is 385933541.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 145339583 - 2¹⁶ = 145274047 is a prime.

It is a super-2 number, since 2×145339583² = 42247188773227778, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145339583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145339573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642983 + ... + 643208.

It is an arithmetic number, because the mean of its divisors is an integer number (36656472).

Almost surely, 2^145339583 is an apocalyptic number.

145339583 is a deficient number, since it is larger than the sum of its proper divisors (1286305).

145339583 is a wasteful number, since it uses less digits than its factorization.

145339583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286304.

The product of its digits is 194400, while the sum is 41.

The square root of 145339583 is about 12055.6867494142. The cubic root of 145339583 is about 525.7685891427.

The spelling of 145339583 in words is "one hundred forty-five million, three hundred thirty-nine thousand, five hundred eighty-three".