1340655523 has 8 divisors (see below), whose sum is σ = 1415221200. Its totient is φ = 1266490368.

The previous prime is 1340655509. The next prime is 1340655553. The reversal of 1340655523 is 3255560431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1340655523 - 2¹³ = 1340647331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340655553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93238 + ... + 106651.

It is an arithmetic number, because the mean of its divisors is an integer number (176902650).

Almost surely, 2^1340655523 is an apocalyptic number.

1340655523 is a deficient number, since it is larger than the sum of its proper divisors (74565677).

1340655523 is a wasteful number, since it uses less digits than its factorization.

1340655523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200261.

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 1340655523 is about 36614.9631025350. The cubic root of 1340655523 is about 1102.6535174943.

The spelling of 1340655523 in words is "one billion, three hundred forty million, six hundred fifty-five thousand, five hundred twenty-three".