153516121 has 4 divisors (see below), whose sum is σ = 167472144. Its totient is φ = 139560100.

The previous prime is 153516119. The next prime is 153516173. The reversal of 153516121 is 121615351.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 153516121 - 2¹ = 153516119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153516521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6977995 + ... + 6978016.

It is an arithmetic number, because the mean of its divisors is an integer number (41868036).

Almost surely, 2^153516121 is an apocalyptic number.

153516121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

153516121 is a deficient number, since it is larger than the sum of its proper divisors (13956023).

153516121 is a wasteful number, since it uses less digits than its factorization.

153516121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13956022.

The product of its digits is 900, while the sum is 25.

The square root of 153516121 is about 12390.1622668955. The cubic root of 153516121 is about 535.4488573041.

The spelling of 153516121 in words is "one hundred fifty-three million, five hundred sixteen thousand, one hundred twenty-one".