1415116639 has 4 divisors (see below), whose sum is σ = 1415304256. Its totient is φ = 1414929024.

The previous prime is 1415116621. The next prime is 1415116657. The reversal of 1415116639 is 9366115141.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9366115141 = 17483 ⋅535727.

It is an interprime number because it is at equal distance from previous prime (1415116621) and next prime (1415116657).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1415116639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1415116598 and 1415116607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1415116679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81999 + ... + 97744.

It is an arithmetic number, because the mean of its divisors is an integer number (353826064).

Almost surely, 2^1415116639 is an apocalyptic number.

1415116639 is a deficient number, since it is larger than the sum of its proper divisors (187617).

1415116639 is an equidigital number, since it uses as much as digits as its factorization.

1415116639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187616.

The product of its digits is 19440, while the sum is 37.

The square root of 1415116639 is about 37618.0360864307. The cubic root of 1415116639 is about 1122.7009216019.

The spelling of 1415116639 in words is "one billion, four hundred fifteen million, one hundred sixteen thousand, six hundred thirty-nine".