1010491 has 2 divisors, whose sum is σ = 1010492. Its totient is φ = 1010490.

The previous prime is 1010473. The next prime is 1010501. The reversal of 1010491 is 1940101.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1010491 - 2¹³ = 1002299 is a prime.

It is a super-2 number, since 2×1010491² = 2042184122162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1010411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505245 + 505246.

It is an arithmetic number, because the mean of its divisors is an integer number (505246).

2^1010491 is an apocalyptic number.

1010491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010491 is an equidigital number, since it uses as much as digits as its factorization.

1010491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1010491 is about 1005.2318140608. The cubic root of 1010491 is about 100.3484841771.

Adding to 1010491 its reverse (1940101), we get a palindrome (2950592).

It can be divided in two parts, 10 and 10491, that added together give a palindrome (10501).

The spelling of 1010491 in words is "one million, ten thousand, four hundred ninety-one".