121533051 has 16 divisors (see below), whose sum is σ = 177113088. Its totient is φ = 73795200.

The previous prime is 121533037. The next prime is 121533053. The reversal of 121533051 is 150335121.

It is not a de Polignac number, because 121533051 - 2⁹ = 121532539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121533053) 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, 36855 + ... + 40016.

It is an arithmetic number, because the mean of its divisors is an integer number (11069568).

Almost surely, 2^121533051 is an apocalyptic number.

121533051 is a deficient number, since it is larger than the sum of its proper divisors (55580037).

121533051 is a wasteful number, since it uses less digits than its factorization.

121533051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76922.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 121533051 is about 11024.2029643870. The cubic root of 121533051 is about 495.3339935496. Note that the first 3 decimals are identical.

Adding to 121533051 its reverse (150335121), we get a palindrome (271868172).

The spelling of 121533051 in words is "one hundred twenty-one million, five hundred thirty-three thousand, fifty-one".