1147720463 has 4 divisors (see below), whose sum is σ = 1156757760. Its totient is φ = 1138683168.

The previous prime is 1147720423. The next prime is 1147720477. The reversal of 1147720463 is 3640277411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3640277411 = 347 ⋅10490713.

It is a cyclic number.

It is not a de Polignac number, because 1147720463 - 2¹⁴ = 1147704079 is a prime.

It is a super-2 number, since 2×1147720463² = 2634524522377868738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147720423) 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, 4518458 + ... + 4518711.

It is an arithmetic number, because the mean of its divisors is an integer number (289189440).

Almost surely, 2^1147720463 is an apocalyptic number.

1147720463 is a deficient number, since it is larger than the sum of its proper divisors (9037297).

1147720463 is an equidigital number, since it uses as much as digits as its factorization.

1147720463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9037296.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 1147720463 is about 33878.0233042012. The cubic root of 1147720463 is about 1046.9968497397.

Adding to 1147720463 its reverse (3640277411), we get a palindrome (4787997874).

The spelling of 1147720463 in words is "one billion, one hundred forty-seven million, seven hundred twenty thousand, four hundred sixty-three".