1401063855 has 32 divisors (see below), whose sum is σ = 2293125120. Its totient is φ = 730243200.

The previous prime is 1401063841. The next prime is 1401063869. The reversal of 1401063855 is 5583601041.

It is an interprime number because it is at equal distance from previous prime (1401063841) and next prime (1401063869).

It is not a de Polignac number, because 1401063855 - 2⁹ = 1401063343 is a prime.

It is a super-2 number, since 2×1401063855² = 3925959851574922050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148530 + ... + 157680.

It is an arithmetic number, because the mean of its divisors is an integer number (71660160).

Almost surely, 2^1401063855 is an apocalyptic number.

1401063855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1401063855 is a deficient number, since it is larger than the sum of its proper divisors (892061265).

1401063855 is a wasteful number, since it uses less digits than its factorization.

1401063855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9391.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 1401063855 is about 37430.7875284504. The cubic root of 1401063855 is about 1118.9722329135.

Adding to 1401063855 its reverse (5583601041), we get a palindrome (6984664896).

The spelling of 1401063855 in words is "one billion, four hundred one million, sixty-three thousand, eight hundred fifty-five".