1205501 has 8 divisors (see below), whose sum is σ = 1360800. Its totient is φ = 1057840.

The previous prime is 1205489. The next prime is 1205513. The reversal of 1205501 is 1055021.

It is an interprime number because it is at equal distance from previous prime (1205489) and next prime (1205513).

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

It is a cyclic number.

It is not a de Polignac number, because 1205501 - 2⁶ = 1205437 is a prime.

It is a super-2 number, since 2×1205501² = 2906465322002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1571 + ... + 2208.

It is an arithmetic number, because the mean of its divisors is an integer number (170100).

2^1205501 is an apocalyptic number.

1205501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1205501 is a deficient number, since it is larger than the sum of its proper divisors (155299).

1205501 is a wasteful number, since it uses less digits than its factorization.

1205501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3819.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 1205501 is about 1097.9530955373. The cubic root of 1205501 is about 106.4279895554.

It can be divided in two parts, 1 and 205501, that added together give a palindrome (205502).

The spelling of 1205501 in words is "one million, two hundred five thousand, five hundred one".