489640153 has 2 divisors, whose sum is σ = 489640154. Its totient is φ = 489640152.

The previous prime is 489640121. The next prime is 489640199. The reversal of 489640153 is 351046984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 382476249 + 107163904 = 19557^2 + 10352^2 .

It is a cyclic number.

It is not a de Polignac number, because 489640153 - 2⁵ = 489640121 is a prime.

It is not a weakly prime, because it can be changed into another prime (489644153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244820076 + 244820077.

It is an arithmetic number, because the mean of its divisors is an integer number (244820077).

Almost surely, 2^489640153 is an apocalyptic number.

It is an amenable number.

489640153 is a deficient number, since it is larger than the sum of its proper divisors (1).

489640153 is an equidigital number, since it uses as much as digits as its factorization.

489640153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 489640153 is about 22127.8140131374. The cubic root of 489640153 is about 788.1804800387.

It can be divided in two parts, 489640 and 153, that multiplied together give a triangular number (74914920 = T₁₂₂₄₀).

The spelling of 489640153 in words is "four hundred eighty-nine million, six hundred forty thousand, one hundred fifty-three".