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121054 = 260527
BaseRepresentation
bin11101100011011110
320011001111
4131203132
512333204
62332234
71012633
oct354336
9204044
10121054
1182a4a
125a07a
134313b
143218a
1525d04
hex1d8de

121054 has 4 divisors (see below), whose sum is σ = 181584. Its totient is φ = 60526.

The previous prime is 121039. The next prime is 121061. The reversal of 121054 is 450121.

121054 = T136 + T137 + ... + T147.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 450121 = 764303.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

121054 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30262 + ... + 30265.

It is an arithmetic number, because the mean of its divisors is an integer number (45396).

2121054 is an apocalyptic number.

121054 is a deficient number, since it is larger than the sum of its proper divisors (60530).

121054 is an equidigital number, since it uses as much as digits as its factorization.

121054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60529.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 121054 is about 347.9281535030. The cubic root of 121054 is about 49.4682311542.

Adding to 121054 its reverse (450121), we get a palindrome (571175).

The spelling of 121054 in words is "one hundred twenty-one thousand, fifty-four".

Divisors: 1 2 60527 121054