145240455 has 32 divisors (see below), whose sum is σ = 240742656. Its totient is φ = 74721024.

The previous prime is 145240441. The next prime is 145240457. The reversal of 145240455 is 554042541.

It is not a de Polignac number, because 145240455 - 2¹⁰ = 145239431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145240457) 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 31 ways as a sum of consecutive naturals, for example, 52179 + ... + 54891.

It is an arithmetic number, because the mean of its divisors is an integer number (7523208).

Almost surely, 2^145240455 is an apocalyptic number.

145240455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145240455 is a deficient number, since it is larger than the sum of its proper divisors (95502201).

145240455 is a wasteful number, since it uses less digits than its factorization.

145240455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2847.

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 145240455 is about 12051.5747933621. The cubic root of 145240455 is about 525.6490295083.

Adding to 145240455 its reverse (554042541), we get a palindrome (699282996).

The spelling of 145240455 in words is "one hundred forty-five million, two hundred forty thousand, four hundred fifty-five".