1405263153 has 16 divisors (see below), whose sum is σ = 2163432320. Its totient is φ = 794727936.

The previous prime is 1405263149. The next prime is 1405263187. The reversal of 1405263153 is 3513625041.

It is not a de Polignac number, because 1405263153 - 2² = 1405263149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1405263153.

It is not an unprimeable number, because it can be changed into a prime (1405263103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342898 + ... + 346971.

It is an arithmetic number, because the mean of its divisors is an integer number (135214520).

Almost surely, 2^1405263153 is an apocalyptic number.

It is an amenable number.

1405263153 is a deficient number, since it is larger than the sum of its proper divisors (758169167).

1405263153 is an equidigital number, since it uses as much as digits as its factorization.

1405263153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689976.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 1405263153 is about 37486.8397307642. The cubic root of 1405263153 is about 1120.0890535589.

Adding to 1405263153 its reverse (3513625041), we get a palindrome (4918888194).

The spelling of 1405263153 in words is "one billion, four hundred five million, two hundred sixty-three thousand, one hundred fifty-three".