705145455 has 24 divisors (see below), whose sum is σ = 1396860192. Its totient is φ = 322352064.

The previous prime is 705145409. The next prime is 705145457. The reversal of 705145455 is 554541507.

It is not a de Polignac number, because 705145455 - 2⁶ = 705145391 is a prime.

It is a super-2 number, since 2×705145455² = 994460225414314050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705145457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1118964 + ... + 1119593.

It is an arithmetic number, because the mean of its divisors is an integer number (58202508).

Almost surely, 2^705145455 is an apocalyptic number.

705145455 is a deficient number, since it is larger than the sum of its proper divisors (691714737).

705145455 is a wasteful number, since it uses less digits than its factorization.

705145455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238575 (or 2238572 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 36.

The square root of 705145455 is about 26554.5750295500. The cubic root of 705145455 is about 890.0742500020.

It can be divided in two parts, 705145 and 455, that added together give a square (705600 = 840²).

The spelling of 705145455 in words is "seven hundred five million, one hundred forty-five thousand, four hundred fifty-five".