1141864973 has 4 divisors (see below), whose sum is σ = 1156319040. Its totient is φ = 1127410908.

The previous prime is 1141864949. The next prime is 1141864991. The reversal of 1141864973 is 3794681411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3794681411 = 1747 ⋅2172113.

It is a cyclic number.

It is not a de Polignac number, because 1141864973 - 2²² = 1137670669 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 (1141864873) 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, 7226915 + ... + 7227072.

It is an arithmetic number, because the mean of its divisors is an integer number (289079760).

Almost surely, 2^1141864973 is an apocalyptic number.

It is an amenable number.

1141864973 is a deficient number, since it is larger than the sum of its proper divisors (14454067).

1141864973 is an equidigital number, since it uses as much as digits as its factorization.

1141864973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14454066.

The product of its digits is 145152, while the sum is 44.

The square root of 1141864973 is about 33791.4926127864. The cubic root of 1141864973 is about 1045.2132751511.

The spelling of 1141864973 in words is "one billion, one hundred forty-one million, eight hundred sixty-four thousand, nine hundred seventy-three".