621161083 has 2 divisors, whose sum is σ = 621161084. Its totient is φ = 621161082.

The previous prime is 621160957. The next prime is 621161117. The reversal of 621161083 is 380161126.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-621161083 is a prime.

It is not a weakly prime, because it can be changed into another prime (621161383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310580541 + 310580542.

It is an arithmetic number, because the mean of its divisors is an integer number (310580542).

Almost surely, 2^621161083 is an apocalyptic number.

621161083 is a deficient number, since it is larger than the sum of its proper divisors (1).

621161083 is an equidigital number, since it uses as much as digits as its factorization.

621161083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 621161083 is about 24923.1033982528. The cubic root of 621161083 is about 853.2338554726.

The spelling of 621161083 in words is "six hundred twenty-one million, one hundred sixty-one thousand, eighty-three".