145426589 has 32 divisors (see below), whose sum is σ = 192844800. Its totient is φ = 106237440.

The previous prime is 145426579. The next prime is 145426591. The reversal of 145426589 is 985624541.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145426589 is a prime.

It is a super-2 number, since 2×145426589² = 42297785576349842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145426529) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156077 + ... + 157005.

It is an arithmetic number, because the mean of its divisors is an integer number (6026400).

Almost surely, 2^145426589 is an apocalyptic number.

145426589 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

145426589 is a deficient number, since it is larger than the sum of its proper divisors (47418211).

145426589 is a wasteful number, since it uses less digits than its factorization.

145426589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073.

The product of its digits is 345600, while the sum is 44.

The square root of 145426589 is about 12059.2947140370. The cubic root of 145426589 is about 525.8734834775.

The spelling of 145426589 in words is "one hundred forty-five million, four hundred twenty-six thousand, five hundred eighty-nine".