146454869 has 16 divisors (see below), whose sum is σ = 175495680. Its totient is φ = 120645360.

The previous prime is 146454857. The next prime is 146454937. The reversal of 146454869 is 968454641.

It is a happy number.

It is not a de Polignac number, because 146454869 - 2⁴ = 146454853 is a prime.

It is a super-2 number, since 2×146454869² = 42898057307614322, 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 (146454809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10427 + ... + 20040.

It is an arithmetic number, because the mean of its divisors is an integer number (10968480).

Almost surely, 2^146454869 is an apocalyptic number.

146454869 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

146454869 is a deficient number, since it is larger than the sum of its proper divisors (29040811).

146454869 is a wasteful number, since it uses less digits than its factorization.

146454869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30520.

The product of its digits is 829440, while the sum is 47.

The square root of 146454869 is about 12101.8539488791. The cubic root of 146454869 is about 527.1100195536.

The spelling of 146454869 in words is "one hundred forty-six million, four hundred fifty-four thousand, eight hundred sixty-nine".