158444449 has 2 divisors, whose sum is σ = 158444450. Its totient is φ = 158444448.

The previous prime is 158444387. The next prime is 158444479. The reversal of 158444449 is 944444851.

158444449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131331600 + 27112849 = 11460^2 + 5207^2 .

It is a cyclic number.

It is not a de Polignac number, because 158444449 - 2⁹ = 158443937 is a prime.

It is not a weakly prime, because it can be changed into another prime (158444479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79222224 + 79222225.

It is an arithmetic number, because the mean of its divisors is an integer number (79222225).

Almost surely, 2^158444449 is an apocalyptic number.

It is an amenable number.

158444449 is a deficient number, since it is larger than the sum of its proper divisors (1).

158444449 is an equidigital number, since it uses as much as digits as its factorization.

158444449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 368640, while the sum is 43.

The square root of 158444449 is about 12587.4719066221. The cubic root of 158444449 is about 541.1184511767.

The spelling of 158444449 in words is "one hundred fifty-eight million, four hundred forty-four thousand, four hundred forty-nine".