752081945 has 12 divisors (see below), whose sum is σ = 943446756. Its totient is φ = 575504160.

The previous prime is 752081933. The next prime is 752081947. The reversal of 752081945 is 549180257.

It can be written as a sum of positive squares in 2 ways, for example, as 253319056 + 498762889 = 15916^2 + 22333^2 .

It is not a de Polignac number, because 752081945 - 2¹⁰ = 752080921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (752081947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139526 + ... + 144815.

It is an arithmetic number, because the mean of its divisors is an integer number (78620563).

Almost surely, 2^752081945 is an apocalyptic number.

It is an amenable number.

752081945 is a deficient number, since it is larger than the sum of its proper divisors (191364811).

752081945 is a wasteful number, since it uses less digits than its factorization.

752081945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284392 (or 284369 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 752081945 is about 27424.1124742443. The cubic root of 752081945 is about 909.4002186257.

The spelling of 752081945 in words is "seven hundred fifty-two million, eighty-one thousand, nine hundred forty-five".