943913131357 has 12 divisors (see below), whose sum is σ = 1098137122236. Its totient is φ = 808983127680.

The previous prime is 943913131351. The next prime is 943913131361. The reversal of 943913131357 is 753131319349.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 580269156516 + 363643974841 = 761754^2 + 603029^2 .

It is a de Polignac number, because none of the positive numbers 2^k-943913131357 is a prime.

It is a super-2 number, since 2×943913131357² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 943913131357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (943913131351) 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, 543244 + ... + 1477477.

It is an arithmetic number, because the mean of its divisors is an integer number (91511426853).

Almost surely, 2^943913131357 is an apocalyptic number.

It is an amenable number.

943913131357 is a deficient number, since it is larger than the sum of its proper divisors (154223990879).

943913131357 is a wasteful number, since it uses less digits than its factorization.

943913131357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030268 (or 2030261 counting only the distinct ones).

The product of its digits is 918540, while the sum is 49.

The spelling of 943913131357 in words is "nine hundred forty-three billion, nine hundred thirteen million, one hundred thirty-one thousand, three hundred fifty-seven".