201513542645 has 16 divisors (see below), whose sum is σ = 242720107200. Its totient is φ = 160608470400.

The previous prime is 201513542611. The next prime is 201513542677. The reversal of 201513542645 is 546245315102.

It is not a de Polignac number, because 201513542645 - 2¹² = 201513538549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201513542599 and 201513542608.

It is a congruent number.

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, 11640206 + ... + 11657504.

It is an arithmetic number, because the mean of its divisors is an integer number (15170006700).

Almost surely, 2^201513542645 is an apocalyptic number.

It is an amenable number.

201513542645 is a deficient number, since it is larger than the sum of its proper divisors (41206564555).

201513542645 is a wasteful number, since it uses less digits than its factorization.

201513542645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25876.

The product of its (nonzero) digits is 144000, while the sum is 38.

Adding to 201513542645 its reverse (546245315102), we get a palindrome (747758857747).

The spelling of 201513542645 in words is "two hundred one billion, five hundred thirteen million, five hundred forty-two thousand, six hundred forty-five".