145455455 has 16 divisors (see below), whose sum is σ = 179292960. Its totient is φ = 113221248.

The previous prime is 145455433. The next prime is 145455461. The reversal of 145455455 is 554554541.

It is a cyclic number.

It is not a de Polignac number, because 145455455 - 2⁶ = 145455391 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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61841 + ... + 64149.

It is an arithmetic number, because the mean of its divisors is an integer number (11205810).

Almost surely, 2^145455455 is an apocalyptic number.

145455455 is a deficient number, since it is larger than the sum of its proper divisors (33837505).

145455455 is a wasteful number, since it uses less digits than its factorization.

145455455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650.

The product of its digits is 200000, while the sum is 38.

The square root of 145455455 is about 12060.4914908141. The cubic root of 145455455 is about 525.9082750514.

The spelling of 145455455 in words is "one hundred forty-five million, four hundred fifty-five thousand, four hundred fifty-five".