152938138 has 4 divisors (see below), whose sum is σ = 229407210. Its totient is φ = 76469068.

The previous prime is 152938127. The next prime is 152938147. The reversal of 152938138 is 831839251.

152938138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 831839251 = 1019 ⋅816329.

It can be written as a sum of positive squares in only one way, i.e., 144312169 + 8625969 = 12013^2 + 2937^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 152938138.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38234533 + ... + 38234536.

Almost surely, 2^152938138 is an apocalyptic number.

152938138 is a deficient number, since it is larger than the sum of its proper divisors (76469072).

152938138 is an equidigital number, since it uses as much as digits as its factorization.

152938138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76469071.

The product of its digits is 51840, while the sum is 40.

The square root of 152938138 is about 12366.8160008953. The cubic root of 152938138 is about 534.7760299302.

The spelling of 152938138 in words is "one hundred fifty-two million, nine hundred thirty-eight thousand, one hundred thirty-eight".