121533374 has 16 divisors (see below), whose sum is σ = 199681200. Its totient is φ = 55219584.

The previous prime is 121533359. The next prime is 121533397. The reversal of 121533374 is 473335121.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60644 + ... + 62615.

It is an arithmetic number, because the mean of its divisors is an integer number (12480075).

Almost surely, 2^121533374 is an apocalyptic number.

121533374 is a deficient number, since it is larger than the sum of its proper divisors (78147826).

121533374 is a wasteful number, since it uses less digits than its factorization.

121533374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123307.

The product of its digits is 7560, while the sum is 29.

The square root of 121533374 is about 11024.2176139625. The cubic root of 121533374 is about 495.3344323678.

Adding to 121533374 its reverse (473335121), we get a palindrome (594868495).

The spelling of 121533374 in words is "one hundred twenty-one million, five hundred thirty-three thousand, three hundred seventy-four".