1026242549 has 4 divisors (see below), whose sum is σ = 1026354540. Its totient is φ = 1026130560.

The previous prime is 1026242531. The next prime is 1026242557. The reversal of 1026242549 is 9452426201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 95687524 + 930555025 = 9782^2 + 30505^2 .

It is a cyclic number.

It is not a de Polignac number, because 1026242549 - 2²⁴ = 1009465333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026242579) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40892 + ... + 61029.

It is an arithmetic number, because the mean of its divisors is an integer number (256588635).

Almost surely, 2^1026242549 is an apocalyptic number.

It is an amenable number.

1026242549 is a deficient number, since it is larger than the sum of its proper divisors (111991).

1026242549 is a wasteful number, since it uses less digits than its factorization.

1026242549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111990.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 1026242549 is about 32035.0206648911. The cubic root of 1026242549 is about 1008.6720937282.

The spelling of 1026242549 in words is "one billion, twenty-six million, two hundred forty-two thousand, five hundred forty-nine".