15140013146 has 4 divisors (see below), whose sum is σ = 22710019722. Its totient is φ = 7570006572.

The previous prime is 15140013139. The next prime is 15140013167. The reversal of 15140013146 is 64131004151.

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., 11339907121 + 3800106025 = 106489^2 + 61645^2 .

It is a super-2 number, since 2×15140013146² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3785003285 + ... + 3785003288.

Almost surely, 2^15140013146 is an apocalyptic number.

15140013146 is a deficient number, since it is larger than the sum of its proper divisors (7570006576).

15140013146 is an equidigital number, since it uses as much as digits as its factorization.

15140013146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7570006575.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 15140013146 its reverse (64131004151), we get a palindrome (79271017297).

The spelling of 15140013146 in words is "fifteen billion, one hundred forty million, thirteen thousand, one hundred forty-six".