146649938 has 6 divisors (see below), whose sum is σ = 220000599. Its totient is φ = 73316406.

The previous prime is 146649913. The next prime is 146649941. The reversal of 146649938 is 839946641.

It can be written as a sum of positive squares in only one way, i.e., 73324969 + 73324969 = 8563^2 + 8563^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=8563.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 12845 + ... + 21407.

Almost surely, 2^146649938 is an apocalyptic number.

146649938 is a deficient number, since it is larger than the sum of its proper divisors (73350661).

146649938 is an frugal number, since it uses more digits than its factorization.

146649938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17128 (or 8565 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 50.

The square root of 146649938 is about 12109.9107346008. The cubic root of 146649938 is about 527.3439419161.

Multiplying 146649938 by its sum of digits (50), we get a square (7332496900 = 85630²).

The spelling of 146649938 in words is "one hundred forty-six million, six hundred forty-nine thousand, nine hundred thirty-eight".