1205151445 has 16 divisors (see below), whose sum is σ = 1469377728. Its totient is φ = 948689280.

The previous prime is 1205151433. The next prime is 1205151469. The reversal of 1205151445 is 5441515021.

It is not a de Polignac number, because 1205151445 - 2¹³ = 1205143253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 476785 + ... + 479305.

It is an arithmetic number, because the mean of its divisors is an integer number (91836108).

Almost surely, 2^1205151445 is an apocalyptic number.

It is an amenable number.

1205151445 is a deficient number, since it is larger than the sum of its proper divisors (264226283).

1205151445 is a wasteful number, since it uses less digits than its factorization.

1205151445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4020.

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 1205151445 is about 34715.2912273540. The cubic root of 1205151445 is about 1064.1770170766.

Adding to 1205151445 its reverse (5441515021), we get a palindrome (6646666466).

The spelling of 1205151445 in words is "one billion, two hundred five million, one hundred fifty-one thousand, four hundred forty-five".