121477963 has 4 divisors (see below), whose sum is σ = 127871560. Its totient is φ = 115084368.

The previous prime is 121477949. The next prime is 121477981. The reversal of 121477963 is 369774121.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 121477963 - 2⁵ = 121477931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121477063) 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 3 ways as a sum of consecutive naturals, for example, 3196770 + ... + 3196807.

It is an arithmetic number, because the mean of its divisors is an integer number (31967890).

Almost surely, 2^121477963 is an apocalyptic number.

121477963 is a deficient number, since it is larger than the sum of its proper divisors (6393597).

121477963 is an equidigital number, since it uses as much as digits as its factorization.

121477963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6393596.

The product of its digits is 63504, while the sum is 40.

The square root of 121477963 is about 11021.7041785742. The cubic root of 121477963 is about 495.2591412558.

The spelling of 121477963 in words is "one hundred twenty-one million, four hundred seventy-seven thousand, nine hundred sixty-three".