1071618139 has 4 divisors (see below), whose sum is σ = 1118210256. Its totient is φ = 1025026024.

The previous prime is 1071618133. The next prime is 1071618157. The reversal of 1071618139 is 9318161701.

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

It is a cyclic number.

It is not a de Polignac number, because 1071618139 - 2¹⁹ = 1071093851 is a prime.

It is a super-2 number, since 2×1071618139² = 2296730871667646642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1071618098 and 1071618107.

It is not an unprimeable number, because it can be changed into a prime (1071618133) 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, 23296024 + ... + 23296069.

It is an arithmetic number, because the mean of its divisors is an integer number (279552564).

Almost surely, 2^1071618139 is an apocalyptic number.

1071618139 is a deficient number, since it is larger than the sum of its proper divisors (46592117).

1071618139 is an equidigital number, since it uses as much as digits as its factorization.

1071618139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46592116.

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 1071618139 is about 32735.5790998113. The cubic root of 1071618139 is about 1023.3244531503.

The spelling of 1071618139 in words is "one billion, seventy-one million, six hundred eighteen thousand, one hundred thirty-nine".