1205601411 has 16 divisors (see below), whose sum is σ = 1838700288. Its totient is φ = 688317600.

The previous prime is 1205601379. The next prime is 1205601413. The reversal of 1205601411 is 1141065021.

It is not a de Polignac number, because 1205601411 - 2⁵ = 1205601379 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1205601413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 496 + ... + 49106.

It is an arithmetic number, because the mean of its divisors is an integer number (114918768).

Almost surely, 2^1205601411 is an apocalyptic number.

1205601411 is a deficient number, since it is larger than the sum of its proper divisors (633098877).

1205601411 is a wasteful number, since it uses less digits than its factorization.

1205601411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49802.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 1205601411 is about 34721.7714265848. The cubic root of 1205601411 is about 1064.3094441102.

Adding to 1205601411 its reverse (1141065021), we get a palindrome (2346666432).

The spelling of 1205601411 in words is "one billion, two hundred five million, six hundred one thousand, four hundred eleven".