1401431105 has 12 divisors (see below), whose sum is σ = 1737722196. Its totient is φ = 1084975200.

The previous prime is 1401431099. The next prime is 1401431107. The reversal of 1401431105 is 5011341041.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 327754816 + 1073676289 = 18104^2 + 32767^2 .

It is not a de Polignac number, because 1401431105 - 2¹² = 1401427009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1401431107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141026 + ... + 150635.

It is an arithmetic number, because the mean of its divisors is an integer number (144810183).

Almost surely, 2^1401431105 is an apocalyptic number.

It is an amenable number.

1401431105 is a deficient number, since it is larger than the sum of its proper divisors (336291091).

1401431105 is an equidigital number, since it uses as much as digits as its factorization.

1401431105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291728 (or 291697 counting only the distinct ones).

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

The square root of 1401431105 is about 37435.6929280066. The cubic root of 1401431105 is about 1119.0699935427.

Adding to 1401431105 its reverse (5011341041), we get a palindrome (6412772146).

The spelling of 1401431105 in words is "one billion, four hundred one million, four hundred thirty-one thousand, one hundred five".