150640489 has 2 divisors, whose sum is σ = 150640490. Its totient is φ = 150640488.

The previous prime is 150640463. The next prime is 150640543. The reversal of 150640489 is 984046051.

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., 84787264 + 65853225 = 9208^2 + 8115^2 .

It is a cyclic number.

It is not a de Polignac number, because 150640489 - 2²³ = 142251881 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (150640429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75320244 + 75320245.

It is an arithmetic number, because the mean of its divisors is an integer number (75320245).

Almost surely, 2^150640489 is an apocalyptic number.

It is an amenable number.

150640489 is a deficient number, since it is larger than the sum of its proper divisors (1).

150640489 is an equidigital number, since it uses as much as digits as its factorization.

150640489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 150640489 is about 12273.5687149256. The cubic root of 150640489 is about 532.0844564599.

The spelling of 150640489 in words is "one hundred fifty million, six hundred forty thousand, four hundred eighty-nine".