152140423 has 4 divisors (see below), whose sum is σ = 158755248. Its totient is φ = 145525600.

The previous prime is 152140403. The next prime is 152140453. The reversal of 152140423 is 324041251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324041251 = 251 ⋅1291001.

It is a de Polignac number, because none of the positive numbers 2^k-152140423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 152140394 and 152140403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152140403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3307378 + ... + 3307423.

It is an arithmetic number, because the mean of its divisors is an integer number (39688812).

Almost surely, 2^152140423 is an apocalyptic number.

152140423 is a deficient number, since it is larger than the sum of its proper divisors (6614825).

152140423 is an equidigital number, since it uses as much as digits as its factorization.

152140423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6614824.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 152140423 is about 12334.5215959112. The cubic root of 152140423 is about 533.8446234441.

Adding to 152140423 its reverse (324041251), we get a palindrome (476181674).

The spelling of 152140423 in words is "one hundred fifty-two million, one hundred forty thousand, four hundred twenty-three".