121613052 has 96 divisors (see below), whose sum is σ = 331236864. Its totient is φ = 34355200.

The previous prime is 121613021. The next prime is 121613059. The reversal of 121613052 is 250316121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121613059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123988 + ... + 124964.

It is an arithmetic number, because the mean of its divisors is an integer number (3450384).

Almost surely, 2^121613052 is an apocalyptic number.

121613052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121613052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165618432).

121613052 is an abundant number, since it is smaller than the sum of its proper divisors (209623812).

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

121613052 is a wasteful number, since it uses less digits than its factorization.

121613052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059 (or 1057 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 121613052 is about 11027.8307930436. The cubic root of 121613052 is about 495.4426567832.

Adding to 121613052 its reverse (250316121), we get a palindrome (371929173).

The spelling of 121613052 in words is "one hundred twenty-one million, six hundred thirteen thousand, fifty-two".