920173245 has 16 divisors (see below), whose sum is σ = 1472955072. Its totient is φ = 490533120.

The previous prime is 920173237. The next prime is 920173253. The reversal of 920173245 is 542371029.

It is an interprime number because it is at equal distance from previous prime (920173237) and next prime (920173253).

It is not a de Polignac number, because 920173245 - 2³ = 920173237 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22629 + ... + 48501.

It is an arithmetic number, because the mean of its divisors is an integer number (92059692).

Almost surely, 2^920173245 is an apocalyptic number.

It is an amenable number.

920173245 is a deficient number, since it is larger than the sum of its proper divisors (552781827).

920173245 is a wasteful number, since it uses less digits than its factorization.

920173245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28252.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 920173245 is about 30334.3575010251. The cubic root of 920173245 is about 972.6498717173.

The spelling of 920173245 in words is "nine hundred twenty million, one hundred seventy-three thousand, two hundred forty-five".