756000001 has 4 divisors (see below), whose sum is σ = 756302404. Its totient is φ = 755697600.

The previous prime is 755999999. The next prime is 756000103. The reversal of 756000001 is 100000657.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100000657 = 2711 ⋅36887.

It can be written as a sum of positive squares in 2 ways, for example, as 264225025 + 491774976 = 16255^2 + 22176^2 .

It is a cyclic number.

It is not a de Polignac number, because 756000001 - 2¹ = 755999999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (756004001) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 147420 + ... + 152461.

It is an arithmetic number, because the mean of its divisors is an integer number (189075601).

Almost surely, 2^756000001 is an apocalyptic number.

It is an amenable number.

756000001 is a deficient number, since it is larger than the sum of its proper divisors (302403).

756000001 is a wasteful number, since it uses less digits than its factorization.

756000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302402.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 756000001 is about 27495.4541879199. The cubic root of 756000001 is about 910.9766919644.

Adding to 756000001 its reverse (100000657), we get a palindrome (856000658).

The spelling of 756000001 in words is "seven hundred fifty-six million, one", and thus it is an aban number.