1347135640 has 16 divisors (see below), whose sum is σ = 3031055280. Its totient is φ = 538854240.

The previous prime is 1347135617. The next prime is 1347135697. The reversal of 1347135640 is 465317431.

It is a junction number, because it is equal to n+sod(n) for n = 1347135596 and 1347135605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16839156 + ... + 16839235.

It is an arithmetic number, because the mean of its divisors is an integer number (189440955).

Almost surely, 2^1347135640 is an apocalyptic number.

1347135640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1347135640 is an abundant number, since it is smaller than the sum of its proper divisors (1683919640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1347135640 is a wasteful number, since it uses less digits than its factorization.

1347135640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33678402 (or 33678398 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 1347135640 is about 36703.3464414350. The cubic root of 1347135640 is about 1104.4272374109.

The spelling of 1347135640 in words is "one billion, three hundred forty-seven million, one hundred thirty-five thousand, six hundred forty".