531101489 has 2 divisors, whose sum is σ = 531101490. Its totient is φ = 531101488.

The previous prime is 531101477. The next prime is 531101611. The reversal of 531101489 is 984101135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 520752400 + 10349089 = 22820^2 + 3217^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-531101489 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (531101189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265550744 + 265550745.

It is an arithmetic number, because the mean of its divisors is an integer number (265550745).

Almost surely, 2^531101489 is an apocalyptic number.

It is an amenable number.

531101489 is a deficient number, since it is larger than the sum of its proper divisors (1).

531101489 is an equidigital number, since it uses as much as digits as its factorization.

531101489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 531101489 is about 23045.6392621251. The cubic root of 531101489 is about 809.8274737974.

The spelling of 531101489 in words is "five hundred thirty-one million, one hundred one thousand, four hundred eighty-nine".