1400042001145 has 4 divisors (see below), whose sum is σ = 1680050401380. Its totient is φ = 1120033600912.

The previous prime is 1400042001133. The next prime is 1400042001167. The reversal of 1400042001145 is 5411002400041.

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

It can be written as a sum of positive squares in 2 ways, for example, as 559101648361 + 840940352784 = 747731^2 + 917028^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400042001145 - 2²⁵ = 1400008446713 is a prime.

It is a super-2 number, since 2×1400042001145² (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 3 ways as a sum of consecutive naturals, for example, 140004200110 + ... + 140004200119.

It is an arithmetic number, because the mean of its divisors is an integer number (420012600345).

Almost surely, 2^{1400042001145} is an apocalyptic number.

It is an amenable number.

1400042001145 is a deficient number, since it is larger than the sum of its proper divisors (280008400235).

1400042001145 is an equidigital number, since it uses as much as digits as its factorization.

1400042001145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280008400234.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 1400042001145 its reverse (5411002400041), we get a palindrome (6811044401186).

The spelling of 1400042001145 in words is "one trillion, four hundred billion, forty-two million, one thousand, one hundred forty-five".