10201139549 has 4 divisors (see below), whose sum is σ = 10201556736. Its totient is φ = 10200722364.

The previous prime is 10201139513. The next prime is 10201139593. The reversal of 10201139549 is 94593110201.

It is a happy number.

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: 94593110201 = 919 ⋅102930479.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10201139549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10201133549) 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, 169469 + ... + 221634.

It is an arithmetic number, because the mean of its divisors is an integer number (2550389184).

Almost surely, 2^10201139549 is an apocalyptic number.

It is an amenable number.

10201139549 is a deficient number, since it is larger than the sum of its proper divisors (417187).

10201139549 is an equidigital number, since it uses as much as digits as its factorization.

10201139549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417186.

The product of its (nonzero) digits is 9720, while the sum is 35.

The spelling of 10201139549 in words is "ten billion, two hundred one million, one hundred thirty-nine thousand, five hundred forty-nine".