145853331 has 16 divisors (see below), whose sum is σ = 210191520. Its totient is φ = 89429760.

The previous prime is 145853311. The next prime is 145853333. The reversal of 145853331 is 133358541.

It is not a de Polignac number, because 145853331 - 2⁵ = 145853299 is a prime.

It is a super-2 number, since 2×145853331² = 42546388327591122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145853292 and 145853301.

It is not an unprimeable number, because it can be changed into a prime (145853333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4305 + ... + 17613.

It is an arithmetic number, because the mean of its divisors is an integer number (13136970).

Almost surely, 2^145853331 is an apocalyptic number.

145853331 is a deficient number, since it is larger than the sum of its proper divisors (64338189).

145853331 is a wasteful number, since it uses less digits than its factorization.

145853331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13606.

The product of its digits is 21600, while the sum is 33.

The square root of 145853331 is about 12076.9752421705. The cubic root of 145853331 is about 526.3873582201.

The spelling of 145853331 in words is "one hundred forty-five million, eight hundred fifty-three thousand, three hundred thirty-one".