158035121 has 4 divisors (see below), whose sum is σ = 158060544. Its totient is φ = 158009700.

The previous prime is 158035081. The next prime is 158035153. The reversal of 158035121 is 121530851.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158035121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158025121) 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, 3536 + ... + 18126.

It is an arithmetic number, because the mean of its divisors is an integer number (39515136).

Almost surely, 2^158035121 is an apocalyptic number.

It is an amenable number.

158035121 is a deficient number, since it is larger than the sum of its proper divisors (25423).

158035121 is a wasteful number, since it uses less digits than its factorization.

158035121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25422.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 158035121 is about 12571.2020507189. The cubic root of 158035121 is about 540.6520712206.

Adding to 158035121 its reverse (121530851), we get a palindrome (279565972).

The spelling of 158035121 in words is "one hundred fifty-eight million, thirty-five thousand, one hundred twenty-one".