121315746 has 16 divisors (see below), whose sum is σ = 245035008. Its totient is φ = 40038000.

The previous prime is 121315739. The next prime is 121315807. The reversal of 121315746 is 647513121.

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 in 7 ways as a sum of consecutive naturals, for example, 99490 + ... + 100701.

It is an arithmetic number, because the mean of its divisors is an integer number (15314688).

Almost surely, 2^121315746 is an apocalyptic number.

121315746 is an abundant number, since it is smaller than the sum of its proper divisors (123719262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121315746 is a wasteful number, since it uses less digits than its factorization.

121315746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200297.

The product of its digits is 5040, while the sum is 30.

The square root of 121315746 is about 11014.3427402637. The cubic root of 121315746 is about 495.0385930526.

Adding to 121315746 its reverse (647513121), we get a palindrome (768828867).

The spelling of 121315746 in words is "one hundred twenty-one million, three hundred fifteen thousand, seven hundred forty-six".