1318232461 has 8 divisors (see below), whose sum is σ = 1622440064. Its totient is φ = 1042997040.

The previous prime is 1318232459. The next prime is 1318232543. The reversal of 1318232461 is 1642328131.

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 1318232461 - 2¹ = 1318232459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318232401) 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, 7242945 + ... + 7243126.

It is an arithmetic number, because the mean of its divisors is an integer number (202805008).

Almost surely, 2^1318232461 is an apocalyptic number.

It is an amenable number.

1318232461 is a deficient number, since it is larger than the sum of its proper divisors (304207603).

1318232461 is a wasteful number, since it uses less digits than its factorization.

1318232461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14486091.

The product of its digits is 6912, while the sum is 31.

The square root of 1318232461 is about 36307.4711457573. The cubic root of 1318232461 is about 1096.4714650379.

The spelling of 1318232461 in words is "one billion, three hundred eighteen million, two hundred thirty-two thousand, four hundred sixty-one".