1205949 has 8 divisors (see below), whose sum is σ = 1692640. Its totient is φ = 761616.

The previous prime is 1205947. The next prime is 1205951. The reversal of 1205949 is 9495021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1205947) and next prime (1205951).

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

It is not a de Polignac number, because 1205949 - 2¹ = 1205947 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205947) 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, 10522 + ... + 10635.

It is an arithmetic number, because the mean of its divisors is an integer number (211580).

2^1205949 is an apocalyptic number.

1205949 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1205949 is a deficient number, since it is larger than the sum of its proper divisors (486691).

1205949 is a wasteful number, since it uses less digits than its factorization.

1205949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21179.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1205949 is about 1098.1570925874. The cubic root of 1205949 is about 106.4411718573.

The spelling of 1205949 in words is "one million, two hundred five thousand, nine hundred forty-nine".