158061001 has 4 divisors (see below), whose sum is σ = 180641152. Its totient is φ = 135480852.

The previous prime is 158060993. The next prime is 158061011. The reversal of 158061001 is 100160851.

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.

It is a cyclic number.

It is not a de Polignac number, because 158061001 - 2³ = 158060993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158061011) 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, 11290065 + ... + 11290078.

It is an arithmetic number, because the mean of its divisors is an integer number (45160288).

Almost surely, 2^158061001 is an apocalyptic number.

It is an amenable number.

158061001 is a deficient number, since it is larger than the sum of its proper divisors (22580151).

158061001 is an equidigital number, since it uses as much as digits as its factorization.

158061001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22580150.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 158061001 is about 12572.2313453102. The cubic root of 158061001 is about 540.6815821964.

It can be divided in two parts, 15806 and 1001, that added together give a 5-th power (16807 = 7⁵).

The spelling of 158061001 in words is "one hundred fifty-eight million, sixty-one thousand, one".