15220234 has 4 divisors (see below), whose sum is σ = 22830354. Its totient is φ = 7610116.

The previous prime is 15220193. The next prime is 15220241. The reversal of 15220234 is 43202251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10144225 + 5076009 = 3185^2 + 2253^2 .

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, 3805057 + ... + 3805060.

Almost surely, 2^15220234 is an apocalyptic number.

15220234 is a deficient number, since it is larger than the sum of its proper divisors (7610120).

15220234 is an equidigital number, since it uses as much as digits as its factorization.

15220234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7610119.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 15220234 is about 3901.3118306539. The cubic root of 15220234 is about 247.8223341633.

Adding to 15220234 its reverse (43202251), we get a palindrome (58422485).

The spelling of 15220234 in words is "fifteen million, two hundred twenty thousand, two hundred thirty-four".