146377489 has 4 divisors (see below), whose sum is σ = 146402100. Its totient is φ = 146352880.

The previous prime is 146377481. The next prime is 146377493. The reversal of 146377489 is 984773641.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 984773641 = 467 ⋅2108723.

It can be written as a sum of positive squares in 2 ways, for example, as 104387089 + 41990400 = 10217^2 + 6480^2 .

It is a cyclic number.

It is not a de Polignac number, because 146377489 - 2³ = 146377481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146377481) 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, 2787 + ... + 17335.

It is an arithmetic number, because the mean of its divisors is an integer number (36600525).

Almost surely, 2^146377489 is an apocalyptic number.

It is an amenable number.

146377489 is a deficient number, since it is larger than the sum of its proper divisors (24611).

146377489 is a wasteful number, since it uses less digits than its factorization.

146377489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24610.

The product of its digits is 1016064, while the sum is 49.

The square root of 146377489 is about 12098.6564956610. The cubic root of 146377489 is about 527.0171696557.

The spelling of 146377489 in words is "one hundred forty-six million, three hundred seventy-seven thousand, four hundred eighty-nine".