121400434 has 8 divisors (see below), whose sum is σ = 192812508. Its totient is φ = 57129600.

The previous prime is 121400429. The next prime is 121400437. The reversal of 121400434 is 434004121.

It can be written as a sum of positive squares in 2 ways, for example, as 108056025 + 13344409 = 10395^2 + 3653^2 .

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

It is not an unprimeable number, because it can be changed into a prime (121400437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1785267 + ... + 1785334.

Almost surely, 2^121400434 is an apocalyptic number.

121400434 is a deficient number, since it is larger than the sum of its proper divisors (71412074).

121400434 is a wasteful number, since it uses less digits than its factorization.

121400434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3570620.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 121400434 is about 11018.1865114001. The cubic root of 121400434 is about 495.1537583084.

Adding to 121400434 its reverse (434004121), we get a palindrome (555404555).

The spelling of 121400434 in words is "one hundred twenty-one million, four hundred thousand, four hundred thirty-four".