145888389 has 12 divisors (see below), whose sum is σ = 210958176. Its totient is φ = 97152552.

The previous prime is 145888381. The next prime is 145888397. The reversal of 145888389 is 983888541.

It is an interprime number because it is at equal distance from previous prime (145888381) and next prime (145888397).

It is not a de Polignac number, because 145888389 - 2³ = 145888381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145888381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 322 + ... + 17084.

It is an arithmetic number, because the mean of its divisors is an integer number (17579848).

Almost surely, 2^145888389 is an apocalyptic number.

It is an amenable number.

145888389 is a deficient number, since it is larger than the sum of its proper divisors (65069787).

145888389 is a wasteful number, since it uses less digits than its factorization.

145888389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17736 (or 17733 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 54.

The square root of 145888389 is about 12078.4265945528. The cubic root of 145888389 is about 526.4295298306.

The spelling of 145888389 in words is "one hundred forty-five million, eight hundred eighty-eight thousand, three hundred eighty-nine".