5136721941 has 32 divisors (see below), whose sum is σ = 7568265600. Its totient is φ = 3078835200.

The previous prime is 5136721939. The next prime is 5136721943. The reversal of 5136721941 is 1491276315.

It is an interprime number because it is at equal distance from previous prime (5136721939) and next prime (5136721943).

It is not a de Polignac number, because 5136721941 - 2¹ = 5136721939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5136721941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5136721943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1102585 + ... + 1107233.

It is an arithmetic number, because the mean of its divisors is an integer number (236508300).

Almost surely, 2^5136721941 is an apocalyptic number.

It is an amenable number.

5136721941 is a deficient number, since it is larger than the sum of its proper divisors (2431543659).

5136721941 is a wasteful number, since it uses less digits than its factorization.

5136721941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5397.

The product of its digits is 45360, while the sum is 39.

The square root of 5136721941 is about 71670.9281438437. The cubic root of 5136721941 is about 1725.4220843209.

The spelling of 5136721941 in words is "five billion, one hundred thirty-six million, seven hundred twenty-one thousand, nine hundred forty-one".