158145893 has 4 divisors (see below), whose sum is σ = 159624000. Its totient is φ = 156667788.

The previous prime is 158145863. The next prime is 158145931. The reversal of 158145893 is 398541851.

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 158145893 - 2⁶ = 158145829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158145803) 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, 738893 + ... + 739106.

It is an arithmetic number, because the mean of its divisors is an integer number (39906000).

Almost surely, 2^158145893 is an apocalyptic number.

It is an amenable number.

158145893 is a deficient number, since it is larger than the sum of its proper divisors (1478107).

158145893 is a wasteful number, since it uses less digits than its factorization.

158145893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1478106.

The product of its digits is 172800, while the sum is 44.

The square root of 158145893 is about 12575.6070628817. The cubic root of 158145893 is about 540.7783619750.

It can be divided in two parts, 1581 and 45893, that added together give a palindrome (47474).

The spelling of 158145893 in words is "one hundred fifty-eight million, one hundred forty-five thousand, eight hundred ninety-three".