151201121 has 8 divisors (see below), whose sum is σ = 153770400. Its totient is φ = 148651360.

The previous prime is 151201091. The next prime is 151201147. The reversal of 151201121 is 121102151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-151201121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 151201096 and 151201105.

It is not an unprimeable number, because it can be changed into a prime (151201151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11186 + ... + 20676.

It is an arithmetic number, because the mean of its divisors is an integer number (19221300).

Almost surely, 2^151201121 is an apocalyptic number.

It is an amenable number.

151201121 is a deficient number, since it is larger than the sum of its proper divisors (2569279).

151201121 is an equidigital number, since it uses as much as digits as its factorization.

151201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9759.

The product of its (nonzero) digits is 20, while the sum is 14.

The square root of 151201121 is about 12296.3865017329. The cubic root of 151201121 is about 532.7437176301.

Adding to 151201121 its reverse (121102151), we get a palindrome (272303272).

The spelling of 151201121 in words is "one hundred fifty-one million, two hundred one thousand, one hundred twenty-one".