158408749 has 2 divisors, whose sum is σ = 158408750. Its totient is φ = 158408748.

The previous prime is 158408743. The next prime is 158408801. The reversal of 158408749 is 947804851.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96393124 + 62015625 = 9818^2 + 7875^2 .

It is a cyclic number.

It is not a de Polignac number, because 158408749 - 2⁵ = 158408717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 158408699 and 158408708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158408743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79204374 + 79204375.

It is an arithmetic number, because the mean of its divisors is an integer number (79204375).

Almost surely, 2^158408749 is an apocalyptic number.

It is an amenable number.

158408749 is a deficient number, since it is larger than the sum of its proper divisors (1).

158408749 is an equidigital number, since it uses as much as digits as its factorization.

158408749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 158408749 is about 12586.0537500839. The cubic root of 158408749 is about 541.0778073214.

The spelling of 158408749 in words is "one hundred fifty-eight million, four hundred eight thousand, seven hundred forty-nine".