146405929 has 4 divisors (see below), whose sum is σ = 150362884. Its totient is φ = 142448976.

The previous prime is 146405923. The next prime is 146405933. The reversal of 146405929 is 929504641.

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 69755904 + 76650025 = 8352^2 + 8755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146405929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 146405891 and 146405900.

It is not an unprimeable number, because it can be changed into a prime (146405923) 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, 1978422 + ... + 1978495.

It is an arithmetic number, because the mean of its divisors is an integer number (37590721).

Almost surely, 2^146405929 is an apocalyptic number.

It is an amenable number.

146405929 is a deficient number, since it is larger than the sum of its proper divisors (3956955).

146405929 is an equidigital number, since it uses as much as digits as its factorization.

146405929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3956954.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 146405929 is about 12099.8317756901. The cubic root of 146405929 is about 527.0512992153.

The spelling of 146405929 in words is "one hundred forty-six million, four hundred five thousand, nine hundred twenty-nine".