1501541 has 2 divisors, whose sum is σ = 1501542. Its totient is φ = 1501540.

The previous prime is 1501529. The next prime is 1501561. The reversal of 1501541 is 1451051.

1501541 is nontrivially palindromic in base 3.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1110916 + 390625 = 1054^2 + 625^2 .

It is a cyclic number.

It is not a de Polignac number, because 1501541 - 2¹⁰ = 1500517 is a prime.

It is equal to p₁₁₄₂₇₂ and since 1501541 and 114272 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1501501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 750770 + 750771.

It is an arithmetic number, because the mean of its divisors is an integer number (750771).

2^1501541 is an apocalyptic number.

It is an amenable number.

1501541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1501541 is an equidigital number, since it uses as much as digits as its factorization.

1501541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 1501541 is about 1225.3738205136. The cubic root of 1501541 is about 114.5106109424.

Adding to 1501541 its reverse (1451051), we get a palindrome (2952592).

The spelling of 1501541 in words is "one million, five hundred one thousand, five hundred forty-one".