1513887 has 8 divisors (see below), whose sum is σ = 2088240. Its totient is φ = 974400.

The previous prime is 1513871. The next prime is 1513891. The reversal of 1513887 is 7883151.

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

It is not a de Polignac number, because 1513887 - 2⁴ = 1513871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1513807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8614 + ... + 8787.

It is an arithmetic number, because the mean of its divisors is an integer number (261030).

2^1513887 is an apocalyptic number.

1513887 is a deficient number, since it is larger than the sum of its proper divisors (574353).

1513887 is a wasteful number, since it uses less digits than its factorization.

1513887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17433.

The product of its digits is 6720, while the sum is 33.

The square root of 1513887 is about 1230.4011540957. The cubic root of 1513887 is about 114.8235984865.

It can be divided in two parts, 15138 and 87, that added together give a triangular number (15225 = T₁₇₄).

The spelling of 1513887 in words is "one million, five hundred thirteen thousand, eight hundred eighty-seven".