1501000101 has 12 divisors (see below), whose sum is σ = 2171621920. Its totient is φ = 999046440.

The previous prime is 1501000069. The next prime is 1501000139. The reversal of 1501000101 is 1010001051.

It is not a de Polignac number, because 1501000101 - 2⁵ = 1501000069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1501001101) 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, 129145 + ... + 140286.

Almost surely, 2^1501000101 is an apocalyptic number.

It is an amenable number.

1501000101 is a deficient number, since it is larger than the sum of its proper divisors (670621819).

1501000101 is a wasteful number, since it uses less digits than its factorization.

1501000101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270056 (or 270053 counting only the distinct ones).

The product of its (nonzero) digits is 5, while the sum is 9.

The square root of 1501000101 is about 38742.7425590910. The cubic root of 1501000101 is about 1144.9685926690.

Adding to 1501000101 its reverse (1010001051), we get a palindrome (2511001152).

The spelling of 1501000101 in words is "one billion, five hundred one million, one hundred one", and thus it is an aban number.