146939805 has 16 divisors (see below), whose sum is σ = 261226560. Its totient is φ = 78367824.

The previous prime is 146939753. The next prime is 146939867. The reversal of 146939805 is 508939641.

It is a happy number.

146939805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 146939805 - 2¹⁴ = 146923421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 544087 + ... + 544356.

It is an arithmetic number, because the mean of its divisors is an integer number (16326660).

Almost surely, 2^146939805 is an apocalyptic number.

146939805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

146939805 is a deficient number, since it is larger than the sum of its proper divisors (114286755).

146939805 is a wasteful number, since it uses less digits than its factorization.

146939805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088457 (or 1088451 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 146939805 is about 12121.8729988397. The cubic root of 146939805 is about 527.6911610724.

The spelling of 146939805 in words is "one hundred forty-six million, nine hundred thirty-nine thousand, eight hundred five".