158747389 has 2 divisors, whose sum is σ = 158747390. Its totient is φ = 158747388.

The previous prime is 158747371. The next prime is 158747401. The reversal of 158747389 is 983747851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157628025 + 1119364 = 12555^2 + 1058^2 .

It is a cyclic number.

It is not a de Polignac number, because 158747389 - 2¹³ = 158739197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158747359) 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, 79373694 + 79373695.

It is an arithmetic number, because the mean of its divisors is an integer number (79373695).

Almost surely, 2^158747389 is an apocalyptic number.

It is an amenable number.

158747389 is a deficient number, since it is larger than the sum of its proper divisors (1).

158747389 is an equidigital number, since it uses as much as digits as its factorization.

158747389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 52.

The square root of 158747389 is about 12599.4995535537. The cubic root of 158747389 is about 541.4630978582.

The spelling of 158747389 in words is "one hundred fifty-eight million, seven hundred forty-seven thousand, three hundred eighty-nine".