145853946 has 112 divisors (see below), whose sum is σ = 387813888. Its totient is φ = 40240800.

The previous prime is 145853941. The next prime is 145854031. The reversal of 145853946 is 649358541.

It is not an unprimeable number, because it can be changed into a prime (145853941) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 316156 + ... + 316616.

It is an arithmetic number, because the mean of its divisors is an integer number (3462624).

Almost surely, 2^145853946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145853946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193906944).

145853946 is an abundant number, since it is smaller than the sum of its proper divisors (241959942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145853946 is an equidigital number, since it uses as much as digits as its factorization.

145853946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519 (or 504 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 145853946 is about 12077.0007038172. Note that the first 3 decimals coincide. The cubic root of 145853946 is about 526.3880980678.

The spelling of 145853946 in words is "one hundred forty-five million, eight hundred fifty-three thousand, nine hundred forty-six".