745173140 has 48 divisors (see below), whose sum is σ = 1582447104. Its totient is φ = 294739200.

The previous prime is 745173139. The next prime is 745173157. The reversal of 745173140 is 41371547.

It is a junction number, because it is equal to n+sod(n) for n = 745173097 and 745173106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1180625 + ... + 1181255.

It is an arithmetic number, because the mean of its divisors is an integer number (32967648).

Almost surely, 2^745173140 is an apocalyptic number.

It is an amenable number.

745173140 is an abundant number, since it is smaller than the sum of its proper divisors (837273964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

745173140 is a wasteful number, since it uses less digits than its factorization.

745173140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208 (or 1206 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 745173140 is about 27297.8596230547. The cubic root of 745173140 is about 906.6069918793.

The spelling of 745173140 in words is "seven hundred forty-five million, one hundred seventy-three thousand, one hundred forty".