146291138 has 16 divisors (see below), whose sum is σ = 259433280. Its totient is φ = 60534096.

The previous prime is 146291111. The next prime is 146291141. The reversal of 146291138 is 831192641.

It is a junction number, because it is equal to n+sod(n) for n = 146291098 and 146291107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179756 + ... + 180567.

It is an arithmetic number, because the mean of its divisors is an integer number (16214580).

Almost surely, 2^146291138 is an apocalyptic number.

146291138 is a deficient number, since it is larger than the sum of its proper divisors (113142142).

146291138 is a wasteful number, since it uses less digits than its factorization.

146291138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360361.

The product of its digits is 10368, while the sum is 35.

The square root of 146291138 is about 12095.0873498293. The cubic root of 146291138 is about 526.9135166244.

The spelling of 146291138 in words is "one hundred forty-six million, two hundred ninety-one thousand, one hundred thirty-eight".