145006855 has 16 divisors (see below), whose sum is σ = 210565440. Its totient is φ = 93583872.

The previous prime is 145006831. The next prime is 145006859. The reversal of 145006855 is 558600541.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 145006855 - 2⁹ = 145006343 is a prime.

It is a zygodrome in base 6.

It is a self number, because there is not a number n which added to its sum of digits gives 145006855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145006859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121260 + ... + 122449.

It is an arithmetic number, because the mean of its divisors is an integer number (13160340).

Almost surely, 2^145006855 is an apocalyptic number.

145006855 is a deficient number, since it is larger than the sum of its proper divisors (65558585).

145006855 is a wasteful number, since it uses less digits than its factorization.

145006855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243738.

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 145006855 is about 12041.8792138104. The cubic root of 145006855 is about 525.3670660487.

The spelling of 145006855 in words is "one hundred forty-five million, six thousand, eight hundred fifty-five".