151505401121 has 2 divisors, whose sum is σ = 151505401122. Its totient is φ = 151505401120.

The previous prime is 151505401087. The next prime is 151505401141. The reversal of 151505401121 is 121104505151.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145209772096 + 6295629025 = 381064^2 + 79345^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-151505401121 is a prime.

It is not a weakly prime, because it can be changed into another prime (151505401141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75752700560 + 75752700561.

It is an arithmetic number, because the mean of its divisors is an integer number (75752700561).

Almost surely, 2^151505401121 is an apocalyptic number.

It is an amenable number.

151505401121 is a deficient number, since it is larger than the sum of its proper divisors (1).

151505401121 is an equidigital number, since it uses as much as digits as its factorization.

151505401121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1000, while the sum is 26.

Adding to 151505401121 its reverse (121104505151), we get a palindrome (272609906272).

The spelling of 151505401121 in words is "one hundred fifty-one billion, five hundred five million, four hundred one thousand, one hundred twenty-one".