1143462641 has 4 divisors (see below), whose sum is σ = 1193178432. Its totient is φ = 1093746852.

The previous prime is 1143462611. The next prime is 1143462659. The reversal of 1143462641 is 1462643411.

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.

It is a cyclic number.

It is not a de Polignac number, because 1143462641 - 2¹⁸ = 1143200497 is a prime.

It is a super-2 number, since 2×1143462641² = 2615013622725389762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1143462598 and 1143462607.

It is not an unprimeable number, because it can be changed into a prime (1143462601) 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, 24857861 + ... + 24857906.

It is an arithmetic number, because the mean of its divisors is an integer number (298294608).

Almost surely, 2^1143462641 is an apocalyptic number.

It is an amenable number.

1143462641 is a deficient number, since it is larger than the sum of its proper divisors (49715791).

1143462641 is an equidigital number, since it uses as much as digits as its factorization.

1143462641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49715790.

The product of its digits is 13824, while the sum is 32.

The square root of 1143462641 is about 33815.1244415868. The cubic root of 1143462641 is about 1045.7005264515.

The spelling of 1143462641 in words is "one billion, one hundred forty-three million, four hundred sixty-two thousand, six hundred forty-one".