15420106 has 8 divisors (see below), whose sum is σ = 24909444. Its totient is φ = 7116960.

The previous prime is 15420103. The next prime is 15420107. The reversal of 15420106 is 60102451.

It can be written as a sum of positive squares in 2 ways, for example, as 14402025 + 1018081 = 3795^2 + 1009^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (15420103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296515 + ... + 296566.

Almost surely, 2^15420106 is an apocalyptic number.

15420106 is a deficient number, since it is larger than the sum of its proper divisors (9489338).

15420106 is a wasteful number, since it uses less digits than its factorization.

15420106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593096.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 15420106 is about 3926.8442800804. The cubic root of 15420106 is about 248.9024203274.

Adding to 15420106 its reverse (60102451), we get a palindrome (75522557).

The spelling of 15420106 in words is "fifteen million, four hundred twenty thousand, one hundred six".