641110037 has 2 divisors, whose sum is σ = 641110038. Its totient is φ = 641110036.

The previous prime is 641110021. The next prime is 641110051. The reversal of 641110037 is 730011146.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 526748401 + 114361636 = 22951^2 + 10694^2 .

It is a cyclic number.

It is not a de Polignac number, because 641110037 - 2⁴ = 641110021 is a prime.

It is a super-2 number, since 2×641110037² = 822044159084282738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 641109994 and 641110021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (641110087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320555018 + 320555019.

It is an arithmetic number, because the mean of its divisors is an integer number (320555019).

Almost surely, 2^641110037 is an apocalyptic number.

It is an amenable number.

641110037 is a deficient number, since it is larger than the sum of its proper divisors (1).

641110037 is an equidigital number, since it uses as much as digits as its factorization.

641110037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 641110037 is about 25320.1508091875. The cubic root of 641110037 is about 862.2718178706.

The spelling of 641110037 in words is "six hundred forty-one million, one hundred ten thousand, thirty-seven".