745822155 has 16 divisors (see below), whose sum is σ = 1285109280. Its totient is φ = 367173888.

The previous prime is 745822139. The next prime is 745822159. The reversal of 745822155 is 551228547.

It is not a de Polignac number, because 745822155 - 2⁴ = 745822139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (745822159) by changing a digit.

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, 1912170 + ... + 1912559.

It is an arithmetic number, because the mean of its divisors is an integer number (80319330).

Almost surely, 2^745822155 is an apocalyptic number.

745822155 is a deficient number, since it is larger than the sum of its proper divisors (539287125).

745822155 is a wasteful number, since it uses less digits than its factorization.

745822155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3824750.

The product of its digits is 112000, while the sum is 39.

The square root of 745822155 is about 27309.7446893961. The cubic root of 745822155 is about 906.8701212396.

The spelling of 745822155 in words is "seven hundred forty-five million, eight hundred twenty-two thousand, one hundred fifty-five".