121790543 has 8 divisors (see below), whose sum is σ = 145241088. Its totient is φ = 99852984.

The previous prime is 121790519. The next prime is 121790561. The reversal of 121790543 is 345097121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121790543 - 2⁶ = 121790479 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 (121790243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378071 + ... + 378392.

It is an arithmetic number, because the mean of its divisors is an integer number (18155136).

Almost surely, 2^121790543 is an apocalyptic number.

121790543 is a deficient number, since it is larger than the sum of its proper divisors (23450545).

121790543 is an equidigital number, since it uses as much as digits as its factorization.

121790543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756493.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 121790543 is about 11035.8752711328. The cubic root of 121790543 is about 495.6835680599.

The spelling of 121790543 in words is "one hundred twenty-one million, seven hundred ninety thousand, five hundred forty-three".