145414559 has 4 divisors (see below), whose sum is σ = 145565904. Its totient is φ = 145263216.

The previous prime is 145414553. The next prime is 145414561. The reversal of 145414559 is 955414541.

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 145414559 - 2¹⁶ = 145349023 is a prime.

It is a super-4 number, since 4×145414559⁴ (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145414553) 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, 74222 + ... + 76155.

It is an arithmetic number, because the mean of its divisors is an integer number (36391476).

Almost surely, 2^145414559 is an apocalyptic number.

145414559 is a deficient number, since it is larger than the sum of its proper divisors (151345).

145414559 is an equidigital number, since it uses as much as digits as its factorization.

145414559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151344.

The product of its digits is 72000, while the sum is 38.

The square root of 145414559 is about 12058.7959183328. The cubic root of 145414559 is about 525.8589826161.

The spelling of 145414559 in words is "one hundred forty-five million, four hundred fourteen thousand, five hundred fifty-nine".