239151993 has 8 divisors (see below), whose sum is σ = 335652000. Its totient is φ = 151043328.

The previous prime is 239151973. The next prime is 239152013. The reversal of 239151993 is 399151932.

239151993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (239151973) and next prime (239152013).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 239151993 - 2⁵ = 239151961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (239151923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2097768 + ... + 2097881.

It is an arithmetic number, because the mean of its divisors is an integer number (41956500).

Almost surely, 2^239151993 is an apocalyptic number.

It is an amenable number.

239151993 is a deficient number, since it is larger than the sum of its proper divisors (96500007).

239151993 is a wasteful number, since it uses less digits than its factorization.

239151993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4195671.

The product of its digits is 65610, while the sum is 42.

The square root of 239151993 is about 15464.5398573640. The cubic root of 239151993 is about 620.7137055133.

The spelling of 239151993 in words is "two hundred thirty-nine million, one hundred fifty-one thousand, nine hundred ninety-three".