145334805 has 64 divisors (see below), whose sum is σ = 299980800. Its totient is φ = 58302720.

The previous prime is 145334803. The next prime is 145334843. The reversal of 145334805 is 508433541.

It is not a de Polignac number, because 145334805 - 2¹ = 145334803 is a prime.

It is a super-2 number, since 2×145334805² = 42244411088776050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145334803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31326 + ... + 35664.

It is an arithmetic number, because the mean of its divisors is an integer number (4687200).

Almost surely, 2^145334805 is an apocalyptic number.

145334805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145334805 is an abundant number, since it is smaller than the sum of its proper divisors (154645995).

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

145334805 is a wasteful number, since it uses less digits than its factorization.

145334805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4394.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 145334805 is about 12055.4885840434. The cubic root of 145334805 is about 525.7628275789.

The spelling of 145334805 in words is "one hundred forty-five million, three hundred thirty-four thousand, eight hundred five".