7501240745 has 8 divisors (see below), whose sum is σ = 9025623816. Its totient is φ = 5984902656.

The previous prime is 7501240711. The next prime is 7501240759. The reversal of 7501240745 is 5470421057.

It can be written as a sum of positive squares in 4 ways, for example, as 353552809 + 7147687936 = 18803^2 + 84544^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7501240745 - 2¹⁰ = 7501239721 is a prime.

It is a super-2 number, since 2×7501240745² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2009192 + ... + 2012921.

It is an arithmetic number, because the mean of its divisors is an integer number (1128202977).

Almost surely, 2^7501240745 is an apocalyptic number.

It is an amenable number.

7501240745 is a deficient number, since it is larger than the sum of its proper divisors (1524383071).

7501240745 is a wasteful number, since it uses less digits than its factorization.

7501240745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4022491.

The product of its (nonzero) digits is 39200, while the sum is 35.

The square root of 7501240745 is about 86609.7035267989. The cubic root of 7501240745 is about 1957.5417557982.

The spelling of 7501240745 in words is "seven billion, five hundred one million, two hundred forty thousand, seven hundred forty-five".