1026087481 has 2 divisors, whose sum is σ = 1026087482. Its totient is φ = 1026087480.

The previous prime is 1026087451. The next prime is 1026087509. The reversal of 1026087481 is 1847806201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 522533881 + 503553600 = 22859^2 + 22440^2 .

It is a cyclic number.

It is not a de Polignac number, because 1026087481 - 2⁵ = 1026087449 is a prime.

It is a super-2 number, since 2×1026087481² = 2105711037329850722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1026087481.

It is not a weakly prime, because it can be changed into another prime (1026087421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 513043740 + 513043741.

It is an arithmetic number, because the mean of its divisors is an integer number (513043741).

Almost surely, 2^1026087481 is an apocalyptic number.

It is an amenable number.

1026087481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1026087481 is an equidigital number, since it uses as much as digits as its factorization.

1026087481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 1026087481 is about 32032.6002847100. The cubic root of 1026087481 is about 1008.6212868167.

The spelling of 1026087481 in words is "one billion, twenty-six million, eighty-seven thousand, four hundred eighty-one".