1370139719 has 4 divisors (see below), whose sum is σ = 1475535096. Its totient is φ = 1264744344.

The previous prime is 1370139709. The next prime is 1370139721. The reversal of 1370139719 is 9179310731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9179310731 = 1709 ⋅5371159.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1370139719 is a prime.

It is a super-2 number, since 2×1370139719² = 3754565699162797922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1370139709) 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, 52697669 + ... + 52697694.

It is an arithmetic number, because the mean of its divisors is an integer number (368883774).

Almost surely, 2^1370139719 is an apocalyptic number.

1370139719 is a deficient number, since it is larger than the sum of its proper divisors (105395377).

1370139719 is a wasteful number, since it uses less digits than its factorization.

1370139719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105395376.

The product of its (nonzero) digits is 35721, while the sum is 41.

The square root of 1370139719 is about 37015.3984039075. The cubic root of 1370139719 is about 1110.6782962968.

The spelling of 1370139719 in words is "one billion, three hundred seventy million, one hundred thirty-nine thousand, seven hundred nineteen".