146429389 has 4 divisors (see below), whose sum is σ = 146454556. Its totient is φ = 146404224.

The previous prime is 146429369. The next prime is 146429417. The reversal of 146429389 is 983924641.

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

It can be written as a sum of positive squares in 2 ways, for example, as 44116164 + 102313225 = 6642^2 + 10115^2 .

It is a cyclic number.

It is not a de Polignac number, because 146429389 - 2²³ = 138040781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146429359) 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, 1117 + ... + 17149.

It is an arithmetic number, because the mean of its divisors is an integer number (36613639).

Almost surely, 2^146429389 is an apocalyptic number.

It is an amenable number.

146429389 is a deficient number, since it is larger than the sum of its proper divisors (25167).

146429389 is an equidigital number, since it uses as much as digits as its factorization.

146429389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25166.

The product of its digits is 373248, while the sum is 46.

The square root of 146429389 is about 12100.8011718233. The cubic root of 146429389 is about 527.0794491752.

The spelling of 146429389 in words is "one hundred forty-six million, four hundred twenty-nine thousand, three hundred eighty-nine".