1401288975 has 36 divisors (see below), whose sum is σ = 2577713736. Its totient is φ = 727151040.

The previous prime is 1401288953. The next prime is 1401288979. The reversal of 1401288975 is 5798821041.

It is not a de Polignac number, because 1401288975 - 2⁵ = 1401288943 is a prime.

It is a super-2 number, since 2×1401288975² = 3927221582913101250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1401288975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401288979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 75837 + ... + 92486.

Almost surely, 2^1401288975 is an apocalyptic number.

1401288975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1401288975 is a deficient number, since it is larger than the sum of its proper divisors (1176424761).

1401288975 is a wasteful number, since it uses less digits than its factorization.

1401288975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168376 (or 168368 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The square root of 1401288975 is about 37433.7945578591. The cubic root of 1401288975 is about 1119.0321610740.

The spelling of 1401288975 in words is "one billion, four hundred one million, two hundred eighty-eight thousand, nine hundred seventy-five".