11958542 has 4 divisors (see below), whose sum is σ = 17937816. Its totient is φ = 5979270.

The previous prime is 11958523. The next prime is 11958547. The reversal of 11958542 is 24585911.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11958547) 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 as a sum of consecutive naturals, namely, 2989634 + ... + 2989637.

It is an arithmetic number, because the mean of its divisors is an integer number (4484454).

Almost surely, 2^11958542 is an apocalyptic number.

11958542 is a deficient number, since it is larger than the sum of its proper divisors (5979274).

11958542 is an equidigital number, since it uses as much as digits as its factorization.

11958542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5979273.

The product of its digits is 14400, while the sum is 35.

The square root of 11958542 is about 3458.1124909407. The cubic root of 11958542 is about 228.6788911725.

The spelling of 11958542 in words is "eleven million, nine hundred fifty-eight thousand, five hundred forty-two".