146381369 has 4 divisors (see below), whose sum is σ = 146424720. Its totient is φ = 146338020.

The previous prime is 146381351. The next prime is 146381371. The reversal of 146381369 is 963183641.

146381369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 146381369 - 2⁸ = 146381113 is a prime.

It is a super-2 number, since 2×146381369² = 42855010380628322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (146381309) 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, 16139 + ... + 23520.

It is an arithmetic number, because the mean of its divisors is an integer number (36606180).

Almost surely, 2^146381369 is an apocalyptic number.

It is an amenable number.

146381369 is a deficient number, since it is larger than the sum of its proper divisors (43351).

146381369 is an equidigital number, since it uses as much as digits as its factorization.

146381369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43350.

The product of its digits is 93312, while the sum is 41.

The square root of 146381369 is about 12098.8168429810. The cubic root of 146381369 is about 527.0218261289.

The spelling of 146381369 in words is "one hundred forty-six million, three hundred eighty-one thousand, three hundred sixty-nine".