1001501541 has 12 divisors (see below), whose sum is σ = 1448715840. Its totient is φ = 666697320.

The previous prime is 1001501539. The next prime is 1001501549. The reversal of 1001501541 is 1451051001.

It is a happy number.

It is not a de Polignac number, because 1001501541 - 2¹ = 1001501539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001501549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74301 + ... + 86738.

It is an arithmetic number, because the mean of its divisors is an integer number (120726320).

Almost surely, 2^1001501541 is an apocalyptic number.

It is an amenable number.

1001501541 is a deficient number, since it is larger than the sum of its proper divisors (447214299).

1001501541 is a wasteful number, since it uses less digits than its factorization.

1001501541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161736 (or 161733 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 1001501541 is about 31646.5091439798. The cubic root of 1001501541 is about 1000.5002633615.

Adding to 1001501541 its reverse (1451051001), we get a palindrome (2452552542).

The spelling of 1001501541 in words is "one billion, one million, five hundred one thousand, five hundred forty-one".