3105652421 has 2 divisors, whose sum is σ = 3105652422. Its totient is φ = 3105652420.

The previous prime is 3105652411. The next prime is 3105652489. The reversal of 3105652421 is 1242565013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2923024225 + 182628196 = 54065^2 + 13514^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3105652421 is a prime.

It is a super-5 number, since 5×3105652421⁵ (a number of 49 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3105652411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1552826210 + 1552826211.

It is an arithmetic number, because the mean of its divisors is an integer number (1552826211).

Almost surely, 2^3105652421 is an apocalyptic number.

It is an amenable number.

3105652421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3105652421 is an equidigital number, since it uses as much as digits as its factorization.

3105652421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 3105652421 is about 55728.3807498477. The cubic root of 3105652421 is about 1458.9854121040.

The spelling of 3105652421 in words is "three billion, one hundred five million, six hundred fifty-two thousand, four hundred twenty-one".