1405031310145 has 8 divisors (see below), whose sum is σ = 1727160440040. Its totient is φ = 1096609802880.

The previous prime is 1405031310131. The next prime is 1405031310229. The reversal of 1405031310145 is 5410131305041.

It can be written as a sum of positive squares in 4 ways, for example, as 68769293121 + 1336262017024 = 262239^2 + 1155968^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1405031310145 - 2⁷ = 1405031310017 is a prime.

It is a super-2 number, since 2×1405031310145² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3426905430 + ... + 3426905839.

It is an arithmetic number, because the mean of its divisors is an integer number (215895055005).

Almost surely, 2^{1405031310145} is an apocalyptic number.

It is an amenable number.

1405031310145 is a deficient number, since it is larger than the sum of its proper divisors (322129129895).

1405031310145 is an equidigital number, since it uses as much as digits as its factorization.

1405031310145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6853811315.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 1405031310145 its reverse (5410131305041), we get a palindrome (6815162615186).

The spelling of 1405031310145 in words is "one trillion, four hundred five billion, thirty-one million, three hundred ten thousand, one hundred forty-five".