121613470 has 32 divisors (see below), whose sum is σ = 240804576. Its totient is φ = 44218240.

The previous prime is 121613449. The next prime is 121613473. The reversal of 121613470 is 74316121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121613473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8742 + ... + 17878.

It is an arithmetic number, because the mean of its divisors is an integer number (7525143).

Almost surely, 2^121613470 is an apocalyptic number.

121613470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121613470 is a deficient number, since it is larger than the sum of its proper divisors (119191106).

121613470 is an equidigital number, since it uses as much as digits as its factorization.

121613470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9177 (or 9155 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 121613470 is about 11027.8497450772. The cubic root of 121613470 is about 495.4432244163.

Adding to 121613470 its reverse (74316121), we get a palindrome (195929591).

The spelling of 121613470 in words is "one hundred twenty-one million, six hundred thirteen thousand, four hundred seventy".