1513087 has 8 divisors (see below), whose sum is σ = 1555200. Its totient is φ = 1471704.

The previous prime is 1513073. The next prime is 1513091. The reversal of 1513087 is 7803151.

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 1513087 - 2¹⁵ = 1480319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1513037) 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, 8364 + ... + 8542.

It is an arithmetic number, because the mean of its divisors is an integer number (194400).

2^1513087 is an apocalyptic number.

1513087 is a deficient number, since it is larger than the sum of its proper divisors (42113).

1513087 is a wasteful number, since it uses less digits than its factorization.

1513087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 1513087 is about 1230.0760139113. The cubic root of 1513087 is about 114.8033690894.

Subtracting 1513087 from its reverse (7803151), we obtain a square (6290064 = 2508²).

The spelling of 1513087 in words is "one million, five hundred thirteen thousand, eighty-seven".