1401127257 has 8 divisors (see below), whose sum is σ = 1932589440. Its totient is φ = 901874960.

The previous prime is 1401127219. The next prime is 1401127261. The reversal of 1401127257 is 7527211041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1401127257 - 2⁸ = 1401127001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1401127207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8052369 + ... + 8052542.

It is an arithmetic number, because the mean of its divisors is an integer number (241573680).

Almost surely, 2^1401127257 is an apocalyptic number.

It is an amenable number.

1401127257 is a deficient number, since it is larger than the sum of its proper divisors (531462183).

1401127257 is a wasteful number, since it uses less digits than its factorization.

1401127257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16104943.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 1401127257 is about 37431.6344420064. The cubic root of 1401127257 is about 1118.9891115179.

Adding to 1401127257 its reverse (7527211041), we get a palindrome (8928338298).

The spelling of 1401127257 in words is "one billion, four hundred one million, one hundred twenty-seven thousand, two hundred fifty-seven".