150431389 has 2 divisors, whose sum is σ = 150431390. Its totient is φ = 150431388.

The previous prime is 150431377. The next prime is 150431471. The reversal of 150431389 is 983134051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149695225 + 736164 = 12235^2 + 858^2 .

It is a cyclic number.

It is not a de Polignac number, because 150431389 - 2⁷ = 150431261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150431689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75215694 + 75215695.

It is an arithmetic number, because the mean of its divisors is an integer number (75215695).

Almost surely, 2^150431389 is an apocalyptic number.

It is an amenable number.

150431389 is a deficient number, since it is larger than the sum of its proper divisors (1).

150431389 is an equidigital number, since it uses as much as digits as its factorization.

150431389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 150431389 is about 12265.0474520077. The cubic root of 150431389 is about 531.8381517672.

The spelling of 150431389 in words is "one hundred fifty million, four hundred thirty-one thousand, three hundred eighty-nine".