1343553987 has 8 divisors (see below), whose sum is σ = 1800499536. Its totient is φ = 891155552.

The previous prime is 1343553983. The next prime is 1343554019. The reversal of 1343553987 is 7893553431.

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 1343553987 - 2² = 1343553983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1343553983) 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, 1136088 + ... + 1137269.

It is an arithmetic number, because the mean of its divisors is an integer number (225062442).

Almost surely, 2^1343553987 is an apocalyptic number.

1343553987 is a deficient number, since it is larger than the sum of its proper divisors (456945549).

1343553987 is a wasteful number, since it uses less digits than its factorization.

1343553987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273557.

The product of its digits is 1360800, while the sum is 48.

The square root of 1343553987 is about 36654.5220539022. The cubic root of 1343553987 is about 1103.4475820414.

The spelling of 1343553987 in words is "one billion, three hundred forty-three million, five hundred fifty-three thousand, nine hundred eighty-seven".