121034557 has 12 divisors (see below), whose sum is σ = 142582080. Its totient is φ = 102427416.

The previous prime is 121034531. The next prime is 121034569. The reversal of 121034557 is 755430121.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-121034557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121034527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11763 + ... + 19504.

It is an arithmetic number, because the mean of its divisors is an integer number (11881840).

Almost surely, 2^121034557 is an apocalyptic number.

It is an amenable number.

121034557 is a deficient number, since it is larger than the sum of its proper divisors (21547523).

121034557 is an equidigital number, since it uses as much as digits as its factorization.

121034557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31360 (or 31353 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 121034557 is about 11001.5706605921. The cubic root of 121034557 is about 494.6558257780.

Adding to 121034557 its reverse (755430121), we get a palindrome (876464678).

The spelling of 121034557 in words is "one hundred twenty-one million, thirty-four thousand, five hundred fifty-seven".