1401141557 has 2 divisors, whose sum is σ = 1401141558. Its totient is φ = 1401141556.

The previous prime is 1401141527. The next prime is 1401141569. The reversal of 1401141557 is 7551411041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1320159556 + 80982001 = 36334^2 + 8999^2 .

It is a cyclic number.

It is not a de Polignac number, because 1401141557 - 2²⁸ = 1132706101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401141527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700570778 + 700570779.

It is an arithmetic number, because the mean of its divisors is an integer number (700570779).

Almost surely, 2^1401141557 is an apocalyptic number.

It is an amenable number.

1401141557 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401141557 is an equidigital number, since it uses as much as digits as its factorization.

1401141557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2800, while the sum is 29.

The square root of 1401141557 is about 37431.8254564214. The cubic root of 1401141557 is about 1118.9929183312.

Adding to 1401141557 its reverse (7551411041), we get a palindrome (8952552598).

The spelling of 1401141557 in words is "one billion, four hundred one million, one hundred forty-one thousand, five hundred fifty-seven".