146138811 has 64 divisors (see below), whose sum is σ = 250736640. Its totient is φ = 73664640.

The previous prime is 146138689. The next prime is 146138831. The reversal of 146138811 is 118831641.

It is a happy number.

It is not a de Polignac number, because 146138811 - 2¹¹ = 146136763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (146138831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 692496 + ... + 692706.

It is an arithmetic number, because the mean of its divisors is an integer number (3917760).

Almost surely, 2^146138811 is an apocalyptic number.

146138811 is a deficient number, since it is larger than the sum of its proper divisors (104597829).

146138811 is a wasteful number, since it uses less digits than its factorization.

146138811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336.

The product of its digits is 4608, while the sum is 33.

The square root of 146138811 is about 12088.7886489921. The cubic root of 146138811 is about 526.7305685873.

The spelling of 146138811 in words is "one hundred forty-six million, one hundred thirty-eight thousand, eight hundred eleven".