1513720 has 64 divisors (see below), whose sum is σ = 3810240. Its totient is φ = 537600.

The previous prime is 1513717. The next prime is 1513727. The reversal of 1513720 is 273151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1513727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21285 + ... + 21355.

It is an arithmetic number, because the mean of its divisors is an integer number (59535).

2^1513720 is an apocalyptic number.

1513720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1513720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1905120).

1513720 is an abundant number, since it is smaller than the sum of its proper divisors (2296520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1513720 is a wasteful number, since it uses less digits than its factorization.

1513720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 1513720 is about 1230.3332881785. Note that the first 3 decimals coincide. The cubic root of 1513720 is about 114.8193761886.

Adding to 1513720 its reverse (273151), we get a palindrome (1786871).

The spelling of 1513720 in words is "one million, five hundred thirteen thousand, seven hundred twenty".