3640514237 has 2 divisors, whose sum is σ = 3640514238. Its totient is φ = 3640514236.

The previous prime is 3640514173. The next prime is 3640514287. The reversal of 3640514237 is 7324150463.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1902791641 + 1737722596 = 43621^2 + 41686^2 .

It is a cyclic number.

It is not a de Polignac number, because 3640514237 - 2⁶ = 3640514173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3640514197 and 3640514206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3640514287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1820257118 + 1820257119.

It is an arithmetic number, because the mean of its divisors is an integer number (1820257119).

Almost surely, 2^3640514237 is an apocalyptic number.

It is an amenable number.

3640514237 is a deficient number, since it is larger than the sum of its proper divisors (1).

3640514237 is an equidigital number, since it uses as much as digits as its factorization.

3640514237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 3640514237 is about 60336.6740631268. The cubic root of 3640514237 is about 1538.3467721241.

The spelling of 3640514237 in words is "three billion, six hundred forty million, five hundred fourteen thousand, two hundred thirty-seven".