1501530141 has 4 divisors (see below), whose sum is σ = 2002040192. Its totient is φ = 1001020092.

The previous prime is 1501530133. The next prime is 1501530143. The reversal of 1501530141 is 1410351051.

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: 1410351051 = 3 ⋅470117017.

It is not a de Polignac number, because 1501530141 - 2³ = 1501530133 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 (1501530143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250255021 + ... + 250255026.

It is an arithmetic number, because the mean of its divisors is an integer number (500510048).

Almost surely, 2^1501530141 is an apocalyptic number.

It is an amenable number.

1501530141 is a deficient number, since it is larger than the sum of its proper divisors (500510051).

1501530141 is an equidigital number, since it uses as much as digits as its factorization.

1501530141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500510050.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 1501530141 is about 38749.5824622666. The cubic root of 1501530141 is about 1145.1033489851.

Adding to 1501530141 its reverse (1410351051), we get a palindrome (2911881192).

The spelling of 1501530141 in words is "one billion, five hundred one million, five hundred thirty thousand, one hundred forty-one".