747735131 has 32 divisors (see below), whose sum is σ = 902264832. Its totient is φ = 610709760.

The previous prime is 747735119. The next prime is 747735167. The reversal of 747735131 is 131537747.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 747735131 - 2¹⁰ = 747734107 is a prime.

It is a super-2 number, since 2×747735131² = 1118215652263174322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (747705131) 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 31 ways as a sum of consecutive naturals, for example, 866006 + ... + 866868.

It is an arithmetic number, because the mean of its divisors is an integer number (28195776).

Almost surely, 2^747735131 is an apocalyptic number.

747735131 is a deficient number, since it is larger than the sum of its proper divisors (154529701).

747735131 is a wasteful number, since it uses less digits than its factorization.

747735131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043.

The product of its digits is 61740, while the sum is 38.

The square root of 747735131 is about 27344.7459487193. The cubic root of 747735131 is about 907.6448097935.

The spelling of 747735131 in words is "seven hundred forty-seven million, seven hundred thirty-five thousand, one hundred thirty-one".