146043778 has 16 divisors (see below), whose sum is σ = 222963840. Its totient is φ = 71734000.

The previous prime is 146043761. The next prime is 146043791. The reversal of 146043778 is 877340641.

It is a self number, because there is not a number n which added to its sum of digits gives 146043778.

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, 23703 + ... + 29221.

It is an arithmetic number, because the mean of its divisors is an integer number (13935240).

Almost surely, 2^146043778 is an apocalyptic number.

146043778 is a deficient number, since it is larger than the sum of its proper divisors (76920062).

146043778 is a wasteful number, since it uses less digits than its factorization.

146043778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5753.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 146043778 is about 12084.8573843467. The cubic root of 146043778 is about 526.6163674835.

The spelling of 146043778 in words is "one hundred forty-six million, forty-three thousand, seven hundred seventy-eight".