158048381 has 2 divisors, whose sum is σ = 158048382. Its totient is φ = 158048380.

The previous prime is 158048369. The next prime is 158048389. The reversal of 158048381 is 183840851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109537156 + 48511225 = 10466^2 + 6965^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158048381 is a prime.

It is a super-2 number, since 2×158048381² = 49958581473442322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158048389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79024190 + 79024191.

It is an arithmetic number, because the mean of its divisors is an integer number (79024191).

Almost surely, 2^158048381 is an apocalyptic number.

It is an amenable number.

158048381 is a deficient number, since it is larger than the sum of its proper divisors (1).

158048381 is an equidigital number, since it uses as much as digits as its factorization.

158048381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 158048381 is about 12571.7294355232. The cubic root of 158048381 is about 540.6671920071.

The spelling of 158048381 in words is "one hundred fifty-eight million, forty-eight thousand, three hundred eighty-one".