153278123 has 2 divisors, whose sum is σ = 153278124. Its totient is φ = 153278122.

The previous prime is 153278113. The next prime is 153278143. The reversal of 153278123 is 321872351.

153278123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 153278123 - 2⁸ = 153277867 is a prime.

It is a Sophie Germain prime.

It is equal to p_8618207 and since 153278123 and 8618207 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 153278123.

It is not a weakly prime, because it can be changed into another prime (153278113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76639061 + 76639062.

It is an arithmetic number, because the mean of its divisors is an integer number (76639062).

Almost surely, 2^153278123 is an apocalyptic number.

153278123 is a deficient number, since it is larger than the sum of its proper divisors (1).

153278123 is an equidigital number, since it uses as much as digits as its factorization.

153278123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 32.

The square root of 153278123 is about 12380.5542283050. The cubic root of 153278123 is about 535.1720097909.

The spelling of 153278123 in words is "one hundred fifty-three million, two hundred seventy-eight thousand, one hundred twenty-three".