121246546 has 4 divisors (see below), whose sum is σ = 181869822. Its totient is φ = 60623272.

The previous prime is 121246537. The next prime is 121246583. The reversal of 121246546 is 645642121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 645642121 = 71 ⋅9093551.

It can be written as a sum of positive squares in only one way, i.e., 104346225 + 16900321 = 10215^2 + 4111^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30311635 + ... + 30311638.

Almost surely, 2^121246546 is an apocalyptic number.

121246546 is a deficient number, since it is larger than the sum of its proper divisors (60623276).

121246546 is an equidigital number, since it uses as much as digits as its factorization.

121246546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60623275.

The product of its digits is 11520, while the sum is 31.

The square root of 121246546 is about 11011.2009335948. The cubic root of 121246546 is about 494.9444497741.

Adding to 121246546 its reverse (645642121), we get a palindrome (766888667).

The spelling of 121246546 in words is "one hundred twenty-one million, two hundred forty-six thousand, five hundred forty-six".