146923905 has 16 divisors (see below), whose sum is σ = 240546240. Its totient is φ = 76536768.

The previous prime is 146923901. The next prime is 146923913. The reversal of 146923905 is 509329641.

146923905 is nontrivially palindromic in base 9.

It is not a de Polignac number, because 146923905 - 2² = 146923901 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (146923901) 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, 113250 + ... + 114539.

It is an arithmetic number, because the mean of its divisors is an integer number (15034140).

Almost surely, 2^146923905 is an apocalyptic number.

146923905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

146923905 is a deficient number, since it is larger than the sum of its proper divisors (93622335).

146923905 is a wasteful number, since it uses less digits than its factorization.

146923905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227840.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 146923905 is about 12121.2171418550. The cubic root of 146923905 is about 527.6721269921.

The spelling of 146923905 in words is "one hundred forty-six million, nine hundred twenty-three thousand, nine hundred five".