1405134011 has 4 divisors (see below), whose sum is σ = 1406763072. Its totient is φ = 1403504952.

The previous prime is 1405133987. The next prime is 1405134019. The reversal of 1405134011 is 1104315041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1405134011 - 2²² = 1400939707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1405134019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 813236 + ... + 814961.

It is an arithmetic number, because the mean of its divisors is an integer number (351690768).

Almost surely, 2^1405134011 is an apocalyptic number.

1405134011 is a deficient number, since it is larger than the sum of its proper divisors (1629061).

1405134011 is an equidigital number, since it uses as much as digits as its factorization.

1405134011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629060.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1405134011 is about 37485.1171933609. The cubic root of 1405134011 is about 1120.0547408938.

Adding to 1405134011 its reverse (1104315041), we get a palindrome (2509449052).

The spelling of 1405134011 in words is "one billion, four hundred five million, one hundred thirty-four thousand, eleven".