1353861 has 16 divisors (see below), whose sum is σ = 2056320. Its totient is φ = 879840.

The previous prime is 1353857. The next prime is 1353881. The reversal of 1353861 is 1683531.

It is not a de Polignac number, because 1353861 - 2² = 1353857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1353881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 496 + ... + 1718.

It is an arithmetic number, because the mean of its divisors is an integer number (128520).

2^1353861 is an apocalyptic number.

It is an amenable number.

1353861 is a deficient number, since it is larger than the sum of its proper divisors (702459).

1353861 is a wasteful number, since it uses less digits than its factorization.

1353861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273 (or 1267 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1353861 is about 1163.5553274340. Note that the first 3 decimals coincide. The cubic root of 1353861 is about 110.6262079730.

The spelling of 1353861 in words is "one million, three hundred fifty-three thousand, eight hundred sixty-one".