13554987 has 8 divisors (see below), whose sum is σ = 18561936. Its totient is φ = 8792352.

The previous prime is 13554949. The next prime is 13554997. The reversal of 13554987 is 78945531.

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

It is not a de Polignac number, because 13554987 - 2¹⁵ = 13522219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13554997) 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, 60948 + ... + 61169.

It is an arithmetic number, because the mean of its divisors is an integer number (2320242).

Almost surely, 2^13554987 is an apocalyptic number.

13554987 is a deficient number, since it is larger than the sum of its proper divisors (5006949).

13554987 is a wasteful number, since it uses less digits than its factorization.

13554987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122157.

The product of its digits is 151200, while the sum is 42.

The square root of 13554987 is about 3681.7097930174. The cubic root of 13554987 is about 238.4330029063.

It can be divided in two parts, 13554 and 987, that added together give a palindrome (14541).

The spelling of 13554987 in words is "thirteen million, five hundred fifty-four thousand, nine hundred eighty-seven".