158069993 has 4 divisors (see below), whose sum is σ = 158290560. Its totient is φ = 157849428.

The previous prime is 158069983. The next prime is 158069999. The reversal of 158069993 is 399960851.

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 158069993 - 2⁶ = 158069929 is a prime.

It is a super-2 number, since 2×158069993² = 49972245374040098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158069999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109205 + ... + 110642.

It is an arithmetic number, because the mean of its divisors is an integer number (39572640).

Almost surely, 2^158069993 is an apocalyptic number.

It is an amenable number.

158069993 is a deficient number, since it is larger than the sum of its proper divisors (220567).

158069993 is an equidigital number, since it uses as much as digits as its factorization.

158069993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220566.

The product of its (nonzero) digits is 524880, while the sum is 50.

The square root of 158069993 is about 12572.5889537517. The cubic root of 158069993 is about 540.6918350240.

The spelling of 158069993 in words is "one hundred fifty-eight million, sixty-nine thousand, nine hundred ninety-three".