1621060097 has 2 divisors, whose sum is σ = 1621060098. Its totient is φ = 1621060096.

The previous prime is 1621060081. The next prime is 1621060123. The reversal of 1621060097 is 7900601261.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1511732161 + 109327936 = 38881^2 + 10456^2 .

It is a cyclic number.

It is not a de Polignac number, because 1621060097 - 2⁴ = 1621060081 is a prime.

It is not a weakly prime, because it can be changed into another prime (1621060037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 810530048 + 810530049.

It is an arithmetic number, because the mean of its divisors is an integer number (810530049).

Almost surely, 2^1621060097 is an apocalyptic number.

It is an amenable number.

1621060097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1621060097 is an equidigital number, since it uses as much as digits as its factorization.

1621060097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 1621060097 is about 40262.3906021488. The cubic root of 1621060097 is about 1174.7164179379.

The spelling of 1621060097 in words is "one billion, six hundred twenty-one million, sixty thousand, ninety-seven".