1201405 has 16 divisors (see below), whose sum is σ = 1557504. Its totient is φ = 887040.

The previous prime is 1201381. The next prime is 1201439. The reversal of 1201405 is 5041021.

It is not a de Polignac number, because 1201405 - 2¹¹ = 1199357 is a prime.

It is a Duffinian number.

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, 3397 + ... + 3733.

It is an arithmetic number, because the mean of its divisors is an integer number (97344).

2^1201405 is an apocalyptic number.

It is an amenable number.

1201405 is a deficient number, since it is larger than the sum of its proper divisors (356099).

1201405 is a wasteful number, since it uses less digits than its factorization.

1201405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 1201405 is about 1096.0862192364. The cubic root of 1201405 is about 106.3073139452.

Adding to 1201405 its reverse (5041021), we get a palindrome (6242426).

The spelling of 1201405 in words is "one million, two hundred one thousand, four hundred five".