121553214 has 16 divisors (see below), whose sum is σ = 249677328. Its totient is φ = 39422592.

The previous prime is 121553191. The next prime is 121553219. The reversal of 121553214 is 412355121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121553219) 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, 273547 + ... + 273990.

It is an arithmetic number, because the mean of its divisors is an integer number (15604833).

Almost surely, 2^121553214 is an apocalyptic number.

121553214 is an abundant number, since it is smaller than the sum of its proper divisors (128124114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121553214 is a wasteful number, since it uses less digits than its factorization.

121553214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547579.

The product of its digits is 1200, while the sum is 24.

The square root of 121553214 is about 11025.1174143408. The cubic root of 121553214 is about 495.3613849107.

The spelling of 121553214 in words is "one hundred twenty-one million, five hundred fifty-three thousand, two hundred fourteen".