121513136 has 10 divisors (see below), whose sum is σ = 235431732. Its totient is φ = 60756560.

The previous prime is 121513057. The next prime is 121513187. The reversal of 121513136 is 631315121.

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, 3797270 + ... + 3797301.

Almost surely, 2^121513136 is an apocalyptic number.

121513136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

121513136 is a deficient number, since it is larger than the sum of its proper divisors (113918596).

121513136 is an equidigital number, since it uses as much as digits as its factorization.

121513136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7594579 (or 7594573 counting only the distinct ones).

The product of its digits is 540, while the sum is 23.

The square root of 121513136 is about 11023.2996874802. The cubic root of 121513136 is about 495.3069361216.

Adding to 121513136 its reverse (631315121), we get a palindrome (752828257).

The spelling of 121513136 in words is "one hundred twenty-one million, five hundred thirteen thousand, one hundred thirty-six".