1315140 has 48 divisors (see below), whose sum is σ = 3846528. Its totient is φ = 335104.

The previous prime is 1315087. The next prime is 1315151. The reversal of 1315140 is 415131.

1315140 = T₁₅₄ + T₁₅₅ + ... + T₂₂₅.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 904 + ... + 1856.

It is an arithmetic number, because the mean of its divisors is an integer number (80136).

2^1315140 is an apocalyptic number.

1315140 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 1315140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1923264).

1315140 is an abundant number, since it is smaller than the sum of its proper divisors (2531388).

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

1315140 is a wasteful number, since it uses less digits than its factorization.

1315140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988 (or 986 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1315140 is about 1146.7955353942. The cubic root of 1315140 is about 109.5613384158.

Subtracting from 1315140 its reverse (415131), we obtain a palindrome (900009).

The spelling of 1315140 in words is "one million, three hundred fifteen thousand, one hundred forty".