7149611837 has 2 divisors, whose sum is σ = 7149611838. Its totient is φ = 7149611836.

The previous prime is 7149611803. The next prime is 7149611881. The reversal of 7149611837 is 7381169417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6878877721 + 270734116 = 82939^2 + 16454^2 .

It is a cyclic number.

It is not a de Polignac number, because 7149611837 - 2¹⁶ = 7149546301 is a prime.

It is a super-2 number, since 2×7149611837² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7149611791 and 7149611800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7149611237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3574805918 + 3574805919.

It is an arithmetic number, because the mean of its divisors is an integer number (3574805919).

Almost surely, 2^7149611837 is an apocalyptic number.

It is an amenable number.

7149611837 is a deficient number, since it is larger than the sum of its proper divisors (1).

7149611837 is an equidigital number, since it uses as much as digits as its factorization.

7149611837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 47.

The square root of 7149611837 is about 84555.3773393508. The cubic root of 7149611837 is about 1926.4636610613.

The spelling of 7149611837 in words is "seven billion, one hundred forty-nine million, six hundred eleven thousand, eight hundred thirty-seven".