15142207 has 4 divisors (see below), whose sum is σ = 15150240. Its totient is φ = 15134176.

The previous prime is 15142177. The next prime is 15142219. The reversal of 15142207 is 70224151.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 15142207 - 2²³ = 6753599 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15142277) 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, 519 + ... + 5527.

It is an arithmetic number, because the mean of its divisors is an integer number (3787560).

Almost surely, 2^15142207 is an apocalyptic number.

15142207 is a deficient number, since it is larger than the sum of its proper divisors (8033).

15142207 is an equidigital number, since it uses as much as digits as its factorization.

15142207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8032.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 15142207 is about 3891.2988834064. The cubic root of 15142207 is about 247.3981187992.

Adding to 15142207 its reverse (70224151), we get a palindrome (85366358).

It can be divided in two parts, 1514 and 2207, that added together give a square (3721 = 61²).

The spelling of 15142207 in words is "fifteen million, one hundred forty-two thousand, two hundred seven".