1311640054 has 8 divisors (see below), whose sum is σ = 1967885280. Its totient is φ = 655678296.

The previous prime is 1311640003. The next prime is 1311640073. The reversal of 1311640054 is 4500461131.

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

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, 58894 + ... + 78049.

It is an arithmetic number, because the mean of its divisors is an integer number (245985660).

Almost surely, 2^1311640054 is an apocalyptic number.

1311640054 is a deficient number, since it is larger than the sum of its proper divisors (656245226).

1311640054 is a wasteful number, since it uses less digits than its factorization.

1311640054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141734.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1311640054 is about 36216.5715384546. The cubic root of 1311640054 is about 1094.6406120965.

The spelling of 1311640054 in words is "one billion, three hundred eleven million, six hundred forty thousand, fifty-four".