401115151 has 2 divisors, whose sum is σ = 401115152. Its totient is φ = 401115150.

The previous prime is 401115133. The next prime is 401115163. The reversal of 401115151 is 151511104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401115151 - 2¹¹ = 401113103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401116151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200557575 + 200557576.

It is an arithmetic number, because the mean of its divisors is an integer number (200557576).

Almost surely, 2^401115151 is an apocalyptic number.

401115151 is a deficient number, since it is larger than the sum of its proper divisors (1).

401115151 is an equidigital number, since it uses as much as digits as its factorization.

401115151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100, while the sum is 19.

The square root of 401115151 is about 20027.8593713856. The cubic root of 401115151 is about 737.4903729855.

Adding to 401115151 its reverse (151511104), we get a palindrome (552626255).

The spelling of 401115151 in words is "four hundred one million, one hundred fifteen thousand, one hundred fifty-one".