1315420 has 24 divisors (see below), whose sum is σ = 2797200. Its totient is φ = 519552.

The previous prime is 1315399. The next prime is 1315441. The reversal of 1315420 is 245131.

It is an interprime number because it is at equal distance from previous prime (1315399) and next prime (1315441).

It is a junction number, because it is equal to n+sod(n) for n = 1315394 and 1315403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1411 + ... + 2149.

It is an arithmetic number, because the mean of its divisors is an integer number (116550).

2^1315420 is an apocalyptic number.

1315420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1315420 is an abundant number, since it is smaller than the sum of its proper divisors (1481780).

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

1315420 is a wasteful number, since it uses less digits than its factorization.

1315420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837 (or 835 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1315420 is about 1146.9176082003. The cubic root of 1315420 is about 109.5691132529.

The spelling of 1315420 in words is "one million, three hundred fifteen thousand, four hundred twenty".