1401055121 has 2 divisors, whose sum is σ = 1401055122. Its totient is φ = 1401055120.

The previous prime is 1401055109. The next prime is 1401055169. The reversal of 1401055121 is 1215501041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1093228096 + 307827025 = 33064^2 + 17545^2 .

It is a cyclic number.

It is not a de Polignac number, because 1401055121 - 2⁶ = 1401055057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1401055093 and 1401055102.

It is not a weakly prime, because it can be changed into another prime (1401055171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700527560 + 700527561.

It is an arithmetic number, because the mean of its divisors is an integer number (700527561).

Almost surely, 2^1401055121 is an apocalyptic number.

It is an amenable number.

1401055121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401055121 is an equidigital number, since it uses as much as digits as its factorization.

1401055121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 1401055121 is about 37430.6708596039. The cubic root of 1401055121 is about 1118.9699077462.

Adding to 1401055121 its reverse (1215501041), we get a palindrome (2616556162).

The spelling of 1401055121 in words is "one billion, four hundred one million, fifty-five thousand, one hundred twenty-one".