121325554 has 16 divisors (see below), whose sum is σ = 210008448. Its totient is φ = 51491232.

The previous prime is 121325539. The next prime is 121325557. The reversal of 121325554 is 455523121.

It is not an unprimeable number, because it can be changed into a prime (121325557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40627 + ... + 43510.

It is an arithmetic number, because the mean of its divisors is an integer number (13125528).

Almost surely, 2^121325554 is an apocalyptic number.

121325554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

121325554 is a deficient number, since it is larger than the sum of its proper divisors (88682894).

121325554 is a wasteful number, since it uses less digits than its factorization.

121325554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84249.

The product of its digits is 6000, while the sum is 28.

The square root of 121325554 is about 11014.7879689080. The cubic root of 121325554 is about 495.0519334689.

Adding to 121325554 its reverse (455523121), we get a palindrome (576848675).

The spelling of 121325554 in words is "one hundred twenty-one million, three hundred twenty-five thousand, five hundred fifty-four".