152738 has 4 divisors (see below), whose sum is σ = 229110. Its totient is φ = 76368.

The previous prime is 152729. The next prime is 152753. The reversal of 152738 is 837251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 837251 = 349 ⋅2399.

It can be written as a sum of positive squares in only one way, i.e., 142129 + 10609 = 377^2 + 103^2 .

It is a d-powerful number, because it can be written as 1 + 5³ + 7⁶ + 2¹⁵ + 3⁷ + 8 .

It is a Curzon number.

It is an unprimeable number.

152738 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38183 + ... + 38186.

2¹⁵²⁷³⁸ is an apocalyptic number.

152738 is a deficient number, since it is larger than the sum of its proper divisors (76372).

152738 is an equidigital number, since it uses as much as digits as its factorization.

152738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76371.

The product of its digits is 1680, while the sum is 26.

The square root of 152738 is about 390.8170927685. The cubic root of 152738 is about 53.4542655122.

Adding to 152738 its reverse (837251), we get a palindrome (989989).

The spelling of 152738 in words is "one hundred fifty-two thousand, seven hundred thirty-eight".