1488535621 has 2 divisors, whose sum is σ = 1488535622. Its totient is φ = 1488535620.

The previous prime is 1488535619. The next prime is 1488535651. The reversal of 1488535621 is 1265358841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1095941025 + 392594596 = 33105^2 + 19814^2 .

It is a cyclic number.

It is not a de Polignac number, because 1488535621 - 2¹ = 1488535619 is a prime.

Together with 1488535619, 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 (1488535651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 744267810 + 744267811.

It is an arithmetic number, because the mean of its divisors is an integer number (744267811).

Almost surely, 2^1488535621 is an apocalyptic number.

It is an amenable number.

1488535621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1488535621 is an equidigital number, since it uses as much as digits as its factorization.

1488535621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 230400, while the sum is 43.

The square root of 1488535621 is about 38581.5450831094. The cubic root of 1488535621 is about 1141.7904615744.

The spelling of 1488535621 in words is "one billion, four hundred eighty-eight million, five hundred thirty-five thousand, six hundred twenty-one".