1023414781 has 2 divisors, whose sum is σ = 1023414782. Its totient is φ = 1023414780.

The previous prime is 1023414701. The next prime is 1023414829. The reversal of 1023414781 is 1874143201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 679905625 + 343509156 = 26075^2 + 18534^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023414781 - 2²¹ = 1021317629 is a prime.

It is a super-2 number, since 2×1023414781² = 2094755627938555922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023414701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511707390 + 511707391.

It is an arithmetic number, because the mean of its divisors is an integer number (511707391).

Almost surely, 2^1023414781 is an apocalyptic number.

It is an amenable number.

1023414781 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023414781 is an equidigital number, since it uses as much as digits as its factorization.

1023414781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 1023414781 is about 31990.8546462891. The cubic root of 1023414781 is about 1007.7447903733.

Adding to 1023414781 its reverse (1874143201), we get a palindrome (2897557982).

The spelling of 1023414781 in words is "one billion, twenty-three million, four hundred fourteen thousand, seven hundred eighty-one".