1405102401 has 12 divisors (see below), whose sum is σ = 2037140820. Its totient is φ = 933251040.

The previous prime is 1405102393. The next prime is 1405102409. The reversal of 1405102401 is 1042015041.

It is an interprime number because it is at equal distance from previous prime (1405102393) and next prime (1405102409).

It can be written as a sum of positive squares in 2 ways, for example, as 451775025 + 953327376 = 21255^2 + 30876^2 .

It is not a de Polignac number, because 1405102401 - 2³ = 1405102393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1405102409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 287770 + ... + 292611.

It is an arithmetic number, because the mean of its divisors is an integer number (169761735).

Almost surely, 2^1405102401 is an apocalyptic number.

It is an amenable number.

1405102401 is a deficient number, since it is larger than the sum of its proper divisors (632038419).

1405102401 is a wasteful number, since it uses less digits than its factorization.

1405102401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580656 (or 580653 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1405102401 is about 37484.6955569870. The cubic root of 1405102401 is about 1120.0463418856.

Adding to 1405102401 its reverse (1042015041), we get a palindrome (2447117442).

The spelling of 1405102401 in words is "one billion, four hundred five million, one hundred two thousand, four hundred one".