121144530 has 32 divisors (see below), whose sum is σ = 313113024. Its totient is φ = 29820096.

The previous prime is 121144493. The next prime is 121144537. The reversal of 121144530 is 35441121.

It is a super-3 number, since 3×121144530³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121144497 and 121144506.

It is not an unprimeable number, because it can be changed into a prime (121144537) 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, 154924 + ... + 155703.

It is an arithmetic number, because the mean of its divisors is an integer number (9784782).

Almost surely, 2^121144530 is an apocalyptic number.

121144530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121144530 is an abundant number, since it is smaller than the sum of its proper divisors (191968494).

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

121144530 is a wasteful number, since it uses less digits than its factorization.

121144530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310650.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 121144530 is about 11006.5675848559. The cubic root of 121144530 is about 494.8055965516.

Adding to 121144530 its reverse (35441121), we get a palindrome (156585651).

The spelling of 121144530 in words is "one hundred twenty-one million, one hundred forty-four thousand, five hundred thirty".