152243402 has 4 divisors (see below), whose sum is σ = 228365106. Its totient is φ = 76121700.

The previous prime is 152243393. The next prime is 152243407. The reversal of 152243402 is 204342251.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 204342251 = 157 ⋅1301543.

It can be written as a sum of positive squares in only one way, i.e., 103815721 + 48427681 = 10189^2 + 6959^2 .

It is not an unprimeable number, because it can be changed into a prime (152243407) by changing a digit.

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, 38060849 + ... + 38060852.

Almost surely, 2^152243402 is an apocalyptic number.

152243402 is a deficient number, since it is larger than the sum of its proper divisors (76121704).

152243402 is an equidigital number, since it uses as much as digits as its factorization.

152243402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76121703.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 152243402 is about 12338.6953119039. The cubic root of 152243402 is about 533.9650437451.

Adding to 152243402 its reverse (204342251), we get a palindrome (356585653).

The spelling of 152243402 in words is "one hundred fifty-two million, two hundred forty-three thousand, four hundred two".