745155 has 24 divisors (see below), whose sum is σ = 1338480. Its totient is φ = 383040.

The previous prime is 745141. The next prime is 745181. The reversal of 745155 is 551547.

It is not a de Polignac number, because 745155 - 2⁷ = 745027 is a prime.

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, 1020 + ... + 1590.

It is an arithmetic number, because the mean of its divisors is an integer number (55770).

2⁷⁴⁵¹⁵⁵ is an apocalyptic number.

745155 is a deficient number, since it is larger than the sum of its proper divisors (593325).

745155 is a wasteful number, since it uses less digits than its factorization.

745155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611 (or 608 counting only the distinct ones).

The product of its digits is 3500, while the sum is 27.

The square root of 745155 is about 863.2236095010. The cubic root of 745155 is about 90.6599635207.

It can be divided in two parts, 745 and 155, that added together give a square (900 = 30²).

The spelling of 745155 in words is "seven hundred forty-five thousand, one hundred fifty-five".