1391706134 has 24 divisors (see below), whose sum is σ = 2615186448. Its totient is φ = 550564560.

The previous prime is 1391706119. The next prime is 1391706181. The reversal of 1391706134 is 4316071931.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1391706094 and 1391706103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 544922 + ... + 547469.

It is an arithmetic number, because the mean of its divisors is an integer number (108966102).

Almost surely, 2^1391706134 is an apocalyptic number.

1391706134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1391706134 is a deficient number, since it is larger than the sum of its proper divisors (1223480314).

1391706134 is a wasteful number, since it uses less digits than its factorization.

1391706134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092420 (or 1092413 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 1391706134 is about 37305.5777867064. The cubic root of 1391706134 is about 1116.4754566592.

The spelling of 1391706134 in words is "one billion, three hundred ninety-one million, seven hundred six thousand, one hundred thirty-four".