15252938 has 4 divisors (see below), whose sum is σ = 22879410. Its totient is φ = 7626468.

The previous prime is 15252931. The next prime is 15252949. The reversal of 15252938 is 83925251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83925251 = 3617 ⋅23203.

It can be written as a sum of positive squares in only one way, i.e., 11539609 + 3713329 = 3397^2 + 1927^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15252898 and 15252907.

It is not an unprimeable number, because it can be changed into a prime (15252931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3813233 + ... + 3813236.

Almost surely, 2^15252938 is an apocalyptic number.

15252938 is a deficient number, since it is larger than the sum of its proper divisors (7626472).

15252938 is an equidigital number, since it uses as much as digits as its factorization.

15252938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7626471.

The product of its digits is 21600, while the sum is 35.

The square root of 15252938 is about 3905.5009921904. The cubic root of 15252938 is about 247.9997073358. Note that the first 3 decimals are identical.

The spelling of 15252938 in words is "fifteen million, two hundred fifty-two thousand, nine hundred thirty-eight".