158434249949 has 4 divisors (see below), whose sum is σ = 159350055036. Its totient is φ = 157518444864.

The previous prime is 158434249931. The next prime is 158434249957. The reversal of 158434249949 is 949942434851.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72048222724 + 86386027225 = 268418^2 + 293915^2 .

It is a cyclic number.

It is not a de Polignac number, because 158434249949 - 2⁸ = 158434249693 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 158434249891 and 158434249900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158434249979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 457902284 + ... + 457902629.

It is an arithmetic number, because the mean of its divisors is an integer number (39837513759).

Almost surely, 2^158434249949 is an apocalyptic number.

It is an amenable number.

158434249949 is a deficient number, since it is larger than the sum of its proper divisors (915805087).

158434249949 is an equidigital number, since it uses as much as digits as its factorization.

158434249949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915805086.

The product of its digits is 44789760, while the sum is 62.

The spelling of 158434249949 in words is "one hundred fifty-eight billion, four hundred thirty-four million, two hundred forty-nine thousand, nine hundred forty-nine".