145235405 has 16 divisors (see below), whose sum is σ = 203420160. Its totient is φ = 97469952.

The previous prime is 145235371. The next prime is 145235413. The reversal of 145235405 is 504532541.

It is a cyclic number.

It is not a de Polignac number, because 145235405 - 2⁸ = 145235149 is a prime.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 42500 + ... + 45789.

It is an arithmetic number, because the mean of its divisors is an integer number (12713760).

Almost surely, 2^145235405 is an apocalyptic number.

It is an amenable number.

145235405 is a deficient number, since it is larger than the sum of its proper divisors (58184755).

145235405 is an equidigital number, since it uses as much as digits as its factorization.

145235405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88348.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 145235405 is about 12051.3652753537. The cubic root of 145235405 is about 525.6429371783.

Adding to 145235405 its reverse (504532541), we get a palindrome (649767946).

The spelling of 145235405 in words is "one hundred forty-five million, two hundred thirty-five thousand, four hundred five".