1401127957 has 2 divisors, whose sum is σ = 1401127958. Its totient is φ = 1401127956.

The previous prime is 1401127883. The next prime is 1401127967. The reversal of 1401127957 is 7597211041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1110289041 + 290838916 = 33321^2 + 17054^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401127957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401127967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700563978 + 700563979.

It is an arithmetic number, because the mean of its divisors is an integer number (700563979).

Almost surely, 2^1401127957 is an apocalyptic number.

It is an amenable number.

1401127957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401127957 is an equidigital number, since it uses as much as digits as its factorization.

1401127957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 1401127957 is about 37431.6437923851. The cubic root of 1401127957 is about 1118.9892978660.

Adding to 1401127957 its reverse (7597211041), we get a palindrome (8998338998).

The spelling of 1401127957 in words is "one billion, four hundred one million, one hundred twenty-seven thousand, nine hundred fifty-seven".