150989 has 2 divisors, whose sum is σ = 150990. Its totient is φ = 150988.

The previous prime is 150979. The next prime is 150991. The reversal of 150989 is 989051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126025 + 24964 = 355^2 + 158^2 .

It is a cyclic number.

It is not a de Polignac number, because 150989 - 2¹² = 146893 is a prime.

It is a Sophie Germain prime.

Together with 150991, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75494 + 75495.

It is an arithmetic number, because the mean of its divisors is an integer number (75495).

2¹⁵⁰⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

150989 is a deficient number, since it is larger than the sum of its proper divisors (1).

150989 is an equidigital number, since it uses as much as digits as its factorization.

150989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 150989 is about 388.5730304589. The cubic root of 150989 is about 53.2494471204.

The spelling of 150989 in words is "one hundred fifty thousand, nine hundred eighty-nine".