1143947026 has 4 divisors (see below), whose sum is σ = 1715920542. Its totient is φ = 571973512.

The previous prime is 1143947023. The next prime is 1143947033. The reversal of 1143947026 is 6207493411.

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

It can be written as a sum of positive squares in only one way, i.e., 1054625625 + 89321401 = 32475^2 + 9451^2 .

It is a super-2 number, since 2×1143947026² = 2617229596588489352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1143947023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285986755 + ... + 285986758.

Almost surely, 2^1143947026 is an apocalyptic number.

1143947026 is a deficient number, since it is larger than the sum of its proper divisors (571973516).

1143947026 is an equidigital number, since it uses as much as digits as its factorization.

1143947026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571973515.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 1143947026 is about 33822.2859369381. The cubic root of 1143947026 is about 1045.8481628573.

The spelling of 1143947026 in words is "one billion, one hundred forty-three million, nine hundred forty-seven thousand, twenty-six".