1351860 has 24 divisors (see below), whose sum is σ = 3785376. Its totient is φ = 360480.

The previous prime is 1351853. The next prime is 1351897. The reversal of 1351860 is 681531.

1351860 = T₂₁ + T₂₂ + ... + T₂₀₀.

It is a self number, because there is not a number n which added to its sum of digits gives 1351860.

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, 11206 + ... + 11325.

It is an arithmetic number, because the mean of its divisors is an integer number (157724).

2^1351860 is an apocalyptic number.

1351860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1351860 is an abundant number, since it is smaller than the sum of its proper divisors (2433516).

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

1351860 is a wasteful number, since it uses less digits than its factorization.

1351860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22543 (or 22541 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1351860 is about 1162.6951449112. The cubic root of 1351860 is about 110.5716794334.

It can be divided in two parts, 1351 and 860, that added together give a triangular number (2211 = T₆₆).

The spelling of 1351860 in words is "one million, three hundred fifty-one thousand, eight hundred sixty".