201451146541 has 4 divisors (see below), whose sum is σ = 201624364512. Its totient is φ = 201277928572.

The previous prime is 201451146539. The next prime is 201451146553. The reversal of 201451146541 is 145641154102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 145641154102 = 2 ⋅72820577051.

It is a cyclic number.

It is not a de Polignac number, because 201451146541 - 2¹ = 201451146539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201451146497 and 201451146506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201451146521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86607241 + ... + 86609566.

It is an arithmetic number, because the mean of its divisors is an integer number (50406091128).

Almost surely, 2^201451146541 is an apocalyptic number.

It is an amenable number.

201451146541 is a deficient number, since it is larger than the sum of its proper divisors (173217971).

201451146541 is a wasteful number, since it uses less digits than its factorization.

201451146541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173217970.

The product of its (nonzero) digits is 19200, while the sum is 34.

The spelling of 201451146541 in words is "two hundred one billion, four hundred fifty-one million, one hundred forty-six thousand, five hundred forty-one".