401201502534545 has 32 divisors (see below), whose sum is σ = 523543683796128. Its totient is φ = 293914291765248.

The previous prime is 401201502534463. The next prime is 401201502534583. The reversal of 401201502534545 is 545435205102104.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 3326512720129 + 397874989814416 = 1823873^2 + 19946804^2 .

It is a cyclic number.

It is not a de Polignac number, because 401201502534545 - 2²⁰ = 401201501485969 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 424911689 + ... + 425854841.

It is an arithmetic number, because the mean of its divisors is an integer number (16360740118629).

Almost surely, 2^{401201502534545} is an apocalyptic number.

It is an amenable number.

401201502534545 is a deficient number, since it is larger than the sum of its proper divisors (122342181261583).

401201502534545 is a wasteful number, since it uses less digits than its factorization.

401201502534545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078469.

The product of its (nonzero) digits is 480000, while the sum is 41.

Adding to 401201502534545 its reverse (545435205102104), we get a palindrome (946636707636649).

The spelling of 401201502534545 in words is "four hundred one trillion, two hundred one billion, five hundred two million, five hundred thirty-four thousand, five hundred forty-five".