145031455 has 8 divisors (see below), whose sum is σ = 175761504. Its totient is φ = 114876000.

The previous prime is 145031443. The next prime is 145031477. The reversal of 145031455 is 554130541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145031455 - 2²⁷ = 10813727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 143091 + ... + 144100.

It is an arithmetic number, because the mean of its divisors is an integer number (21970188).

Almost surely, 2^145031455 is an apocalyptic number.

145031455 is a deficient number, since it is larger than the sum of its proper divisors (30730049).

145031455 is a wasteful number, since it uses less digits than its factorization.

145031455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287297.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 145031455 is about 12042.9006057511. The cubic root of 145031455 is about 525.3967733777.

Adding to 145031455 its reverse (554130541), we get a palindrome (699161996).

The spelling of 145031455 in words is "one hundred forty-five million, thirty-one thousand, four hundred fifty-five".