1075624621 has 2 divisors, whose sum is σ = 1075624622. Its totient is φ = 1075624620.

The previous prime is 1075624619. The next prime is 1075624681. The reversal of 1075624621 is 1264265701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 936054025 + 139570596 = 30595^2 + 11814^2 .

It is a cyclic number.

It is not a de Polignac number, because 1075624621 - 2¹ = 1075624619 is a prime.

It is a super-3 number, since 3×1075624621³ (a number of 28 digits) contains 333 as substring.

Together with 1075624619, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1075624681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537812310 + 537812311.

It is an arithmetic number, because the mean of its divisors is an integer number (537812311).

Almost surely, 2^1075624621 is an apocalyptic number.

It is an amenable number.

1075624621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1075624621 is an equidigital number, since it uses as much as digits as its factorization.

1075624621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 1075624621 is about 32796.7166191983. The cubic root of 1075624621 is about 1024.5981755515.

The spelling of 1075624621 in words is "one billion, seventy-five million, six hundred twenty-four thousand, six hundred twenty-one".