154290320489 has 2 divisors, whose sum is σ = 154290320490. Its totient is φ = 154290320488.

The previous prime is 154290320467. The next prime is 154290320497. The reversal of 154290320489 is 984023092451.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153793387225 + 496933264 = 392165^2 + 22292^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154290320489 is a prime.

It is not a weakly prime, because it can be changed into another prime (154290323489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77145160244 + 77145160245.

It is an arithmetic number, because the mean of its divisors is an integer number (77145160245).

Almost surely, 2^154290320489 is an apocalyptic number.

It is an amenable number.

154290320489 is a deficient number, since it is larger than the sum of its proper divisors (1).

154290320489 is an equidigital number, since it uses as much as digits as its factorization.

154290320489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 154290320489 in words is "one hundred fifty-four billion, two hundred ninety million, three hundred twenty thousand, four hundred eighty-nine".