1402204021545 has 8 divisors (see below), whose sum is σ = 2243526434496. Its totient is φ = 747842144816.

The previous prime is 1402204021513. The next prime is 1402204021549. The reversal of 1402204021545 is 5451204022041.

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

It is a cyclic number.

It is not a de Polignac number, because 1402204021545 - 2⁵ = 1402204021513 is a prime.

It is a super-2 number, since 2×1402204021545² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1402204021549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46740134037 + ... + 46740134066.

It is an arithmetic number, because the mean of its divisors is an integer number (280440804312).

Almost surely, 2^{1402204021545} is an apocalyptic number.

1402204021545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1402204021545 is a deficient number, since it is larger than the sum of its proper divisors (841322412951).

1402204021545 is an equidigital number, since it uses as much as digits as its factorization.

1402204021545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93480268111.

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 1402204021545 its reverse (5451204022041), we get a palindrome (6853408043586).

The spelling of 1402204021545 in words is "one trillion, four hundred two billion, two hundred four million, twenty-one thousand, five hundred forty-five".