152146538 has 4 divisors (see below), whose sum is σ = 228219810. Its totient is φ = 76073268.

The previous prime is 152146507. The next prime is 152146559. The reversal of 152146538 is 835641251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 835641251 = 22481 ⋅37171.

It can be written as a sum of positive squares in only one way, i.e., 99540529 + 52606009 = 9977^2 + 7253^2 .

It is a junction number, because it is equal to n+sod(n) for n = 152146498 and 152146507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38036633 + ... + 38036636.

Almost surely, 2^152146538 is an apocalyptic number.

152146538 is a deficient number, since it is larger than the sum of its proper divisors (76073272).

152146538 is an equidigital number, since it uses as much as digits as its factorization.

152146538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76073271.

The product of its digits is 28800, while the sum is 35.

The square root of 152146538 is about 12334.7694749436. The cubic root of 152146538 is about 533.8517756440.

Adding to 152146538 its reverse (835641251), we get a palindrome (987787789).

The spelling of 152146538 in words is "one hundred fifty-two million, one hundred forty-six thousand, five hundred thirty-eight".