145331355 has 32 divisors (see below), whose sum is σ = 251000064. Its totient is φ = 71381376.

The previous prime is 145331321. The next prime is 145331369. The reversal of 145331355 is 553133541.

It is not a de Polignac number, because 145331355 - 2¹¹ = 145329307 is a prime.

It is a super-2 number, since 2×145331355² = 42242405492272050, which contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 152992 + ... + 153938.

It is an arithmetic number, because the mean of its divisors is an integer number (7843752).

Almost surely, 2^145331355 is an apocalyptic number.

145331355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145331355 is a deficient number, since it is larger than the sum of its proper divisors (105668709).

145331355 is a wasteful number, since it uses less digits than its factorization.

145331355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755.

The product of its digits is 13500, while the sum is 30.

The square root of 145331355 is about 12055.3454948417. The cubic root of 145331355 is about 525.7586673088.

Adding to 145331355 its reverse (553133541), we get a palindrome (698464896).

The spelling of 145331355 in words is "one hundred forty-five million, three hundred thirty-one thousand, three hundred fifty-five".