1509001501 has 6 divisors (see below), whose sum is σ = 1755369150. Its totient is φ = 1293429816.

The previous prime is 1509001493. The next prime is 1509001511. The reversal of 1509001501 is 1051009051.

It can be written as a sum of positive squares in only one way, i.e., 940894276 + 568107225 = 30674^2 + 23835^2 .

It is not a de Polignac number, because 1509001501 - 2³ = 1509001493 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 (1509001511) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15397926 + ... + 15398023.

It is an arithmetic number, because the mean of its divisors is an integer number (292561525).

Almost surely, 2^1509001501 is an apocalyptic number.

It is an amenable number.

1509001501 is a deficient number, since it is larger than the sum of its proper divisors (246367649).

1509001501 is an equidigital number, since it uses as much as digits as its factorization.

1509001501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30795963 (or 30795956 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 22.

The square root of 1509001501 is about 38845.8685190588. The cubic root of 1509001501 is about 1146.9994876895. Note that the first 3 decimals are identical.

The spelling of 1509001501 in words is "one billion, five hundred nine million, one thousand, five hundred one".