1405015026145 has 16 divisors (see below), whose sum is σ = 1791295958160. Its totient is φ = 1055921819904.

The previous prime is 1405015026139. The next prime is 1405015026179. The reversal of 1405015026145 is 5416205105041.

It can be written as a sum of positive squares in 8 ways, for example, as 34694277696 + 1370320748449 = 186264^2 + 1170607^2 .

It is a cyclic number.

It is not a de Polignac number, because 1405015026145 - 2¹⁷ = 1405014895073 is a prime.

It is a super-2 number, since 2×1405015026145² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1405015026145.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130937322 + ... + 130948051.

It is an arithmetic number, because the mean of its divisors is an integer number (111955997385).

Almost surely, 2^{1405015026145} is an apocalyptic number.

It is an amenable number.

1405015026145 is a deficient number, since it is larger than the sum of its proper divisors (386280932015).

1405015026145 is a wasteful number, since it uses less digits than its factorization.

1405015026145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261885444.

The product of its (nonzero) digits is 24000, while the sum is 34.

The spelling of 1405015026145 in words is "one trillion, four hundred five billion, fifteen million, twenty-six thousand, one hundred forty-five".