11620543 has 12 divisors (see below), whose sum is σ = 13258728. Its totient is φ = 10099760.

The previous prime is 11620529. The next prime is 11620549. The reversal of 11620543 is 34502611.

It is not a de Polignac number, because 11620543 - 2¹³ = 11612351 is a prime.

It is a super-2 number, since 2×11620543² = 270074039229698, 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 (11620549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4821 + ... + 6817.

It is an arithmetic number, because the mean of its divisors is an integer number (1104894).

Almost surely, 2^11620543 is an apocalyptic number.

11620543 is a deficient number, since it is larger than the sum of its proper divisors (1638185).

11620543 is a wasteful number, since it uses less digits than its factorization.

11620543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2054 (or 2031 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 11620543 is about 3408.8917553950. The cubic root of 11620543 is about 226.5037903811.

The spelling of 11620543 in words is "eleven million, six hundred twenty thousand, five hundred forty-three".