1202405 has 8 divisors (see below), whose sum is σ = 1457784. Its totient is φ = 952000.

The previous prime is 1202387. The next prime is 1202423. The reversal of 1202405 is 5042021.

It is an interprime number because it is at equal distance from previous prime (1202387) and next prime (1202423).

It can be written as a sum of positive squares in 4 ways, for example, as 66049 + 1136356 = 257^2 + 1066^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1202405 - 2¹⁰ = 1201381 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1202405.

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, 686 + ... + 1695.

It is an arithmetic number, because the mean of its divisors is an integer number (182223).

2^1202405 is an apocalyptic number.

It is an amenable number.

1202405 is a deficient number, since it is larger than the sum of its proper divisors (255379).

1202405 is a wasteful number, since it uses less digits than its factorization.

1202405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2487.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 1202405 is about 1096.5422928460. The cubic root of 1202405 is about 106.3368010408.

Adding to 1202405 its reverse (5042021), we get a palindrome (6244426).

The spelling of 1202405 in words is "one million, two hundred two thousand, four hundred five".