145206855 has 24 divisors (see below), whose sum is σ = 255145488. Its totient is φ = 76381056.

The previous prime is 145206781. The next prime is 145206869. The reversal of 145206855 is 558602541.

It is not a de Polignac number, because 145206855 - 2⁷ = 145206727 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18817 + ... + 25386.

It is an arithmetic number, because the mean of its divisors is an integer number (10631062).

Almost surely, 2^145206855 is an apocalyptic number.

145206855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145206855 is a deficient number, since it is larger than the sum of its proper divisors (109938633).

145206855 is a wasteful number, since it uses less digits than its factorization.

145206855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44287 (or 44284 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 145206855 is about 12050.1807040393. The cubic root of 145206855 is about 525.6084917451.

The spelling of 145206855 in words is "one hundred forty-five million, two hundred six thousand, eight hundred fifty-five".