121863395 has 16 divisors (see below), whose sum is σ = 155180448. Its totient is φ = 91553280.

The previous prime is 121863347. The next prime is 121863403. The reversal of 121863395 is 593368121.

It is a happy number.

It is not a de Polignac number, because 121863395 - 2¹² = 121859299 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45185 + ... + 47805.

It is an arithmetic number, because the mean of its divisors is an integer number (9698778).

Almost surely, 2^121863395 is an apocalyptic number.

121863395 is a deficient number, since it is larger than the sum of its proper divisors (33317053).

121863395 is a wasteful number, since it uses less digits than its factorization.

121863395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3190.

The product of its digits is 38880, while the sum is 38.

The square root of 121863395 is about 11039.1754673979. The cubic root of 121863395 is about 495.7823834536.

The spelling of 121863395 in words is "one hundred twenty-one million, eight hundred sixty-three thousand, three hundred ninety-five".