1401453545 has 4 divisors (see below), whose sum is σ = 1681744260. Its totient is φ = 1121162832.

The previous prime is 1401453533. The next prime is 1401453563. The reversal of 1401453545 is 5453541041.

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 711235561 + 690217984 = 26669^2 + 26272^2 .

It is a cyclic number.

It is not a de Polignac number, because 1401453545 - 2³⁰ = 327711721 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140145350 + ... + 140145359.

It is an arithmetic number, because the mean of its divisors is an integer number (420436065).

Almost surely, 2^1401453545 is an apocalyptic number.

It is an amenable number.

1401453545 is a deficient number, since it is larger than the sum of its proper divisors (280290715).

1401453545 is an equidigital number, since it uses as much as digits as its factorization.

1401453545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280290714.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 1401453545 is about 37435.9926407729. The cubic root of 1401453545 is about 1119.0759664363.

Adding to 1401453545 its reverse (5453541041), we get a palindrome (6854994586).

The spelling of 1401453545 in words is "one billion, four hundred one million, four hundred fifty-three thousand, five hundred forty-five".