152422705 has 4 divisors (see below), whose sum is σ = 182907252. Its totient is φ = 121938160.

The previous prime is 152422703. The next prime is 152422709. The reversal of 152422705 is 507224251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 507224251 = 151 ⋅3359101.

It can be written as a sum of positive squares in 2 ways, for example, as 67174416 + 85248289 = 8196^2 + 9233^2 .

It is not a de Polignac number, because 152422705 - 2¹ = 152422703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152422703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15242266 + ... + 15242275.

It is an arithmetic number, because the mean of its divisors is an integer number (45726813).

Almost surely, 2^152422705 is an apocalyptic number.

It is an amenable number.

152422705 is a deficient number, since it is larger than the sum of its proper divisors (30484547).

152422705 is an equidigital number, since it uses as much as digits as its factorization.

152422705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30484546.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 152422705 is about 12345.9590554967. The cubic root of 152422705 is about 534.1745853330.

Adding to 152422705 its reverse (507224251), we get a palindrome (659646956).

The spelling of 152422705 in words is "one hundred fifty-two million, four hundred twenty-two thousand, seven hundred five".