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2641531 is a prime number
BaseRepresentation
bin1010000100111001111011
311222012111111
422010321323
51134012111
6132341151
731311154
oct12047173
94865444
102641531
111544692
12a747b7
13716449
144ca92b
15372a21
hex284e7b

2641531 has 2 divisors, whose sum is σ = 2641532. Its totient is φ = 2641530.

The previous prime is 2641519. The next prime is 2641543. The reversal of 2641531 is 1351462.

It is a balanced prime because it is at equal distance from previous prime (2641519) and next prime (2641543).

It is a cyclic number.

It is not a de Polignac number, because 2641531 - 215 = 2608763 is a prime.

It is a super-2 number, since 2×26415312 = 13955372047922, which contains 22 as substring.

2641531 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2641501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320765 + 1320766.

It is an arithmetic number, because the mean of its divisors is an integer number (1320766).

22641531 is an apocalyptic number.

2641531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2641531 is an equidigital number, since it uses as much as digits as its factorization.

2641531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 22.

The square root of 2641531 is about 1625.2787453234. The cubic root of 2641531 is about 138.2351762504.

Adding to 2641531 its reverse (1351462), we get a palindrome (3992993).

The spelling of 2641531 in words is "two million, six hundred forty-one thousand, five hundred thirty-one".