2137427693 has 2 divisors, whose sum is σ = 2137427694. Its totient is φ = 2137427692.

The previous prime is 2137427659. The next prime is 2137427717. The reversal of 2137427693 is 3967247312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2130468649 + 6959044 = 46157^2 + 2638^2 .

It is a cyclic number.

It is not a de Polignac number, because 2137427693 - 2¹² = 2137423597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2137427093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068713846 + 1068713847.

It is an arithmetic number, because the mean of its divisors is an integer number (1068713847).

Almost surely, 2^2137427693 is an apocalyptic number.

It is an amenable number.

2137427693 is a deficient number, since it is larger than the sum of its proper divisors (1).

2137427693 is an equidigital number, since it uses as much as digits as its factorization.

2137427693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 44.

The square root of 2137427693 is about 46232.3230327008. The cubic root of 2137427693 is about 1288.1422075038.

The spelling of 2137427693 in words is "two billion, one hundred thirty-seven million, four hundred twenty-seven thousand, six hundred ninety-three".