1401534671 has 4 divisors (see below), whose sum is σ = 1402806432. Its totient is φ = 1400262912.

The previous prime is 1401534653. The next prime is 1401534679. The reversal of 1401534671 is 1764351041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1764351041 = 89 ⋅19824169.

It is not a de Polignac number, because 1401534671 - 2¹⁰ = 1401533647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401534679) 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 3 ways as a sum of consecutive naturals, for example, 634226 + ... + 636431.

It is an arithmetic number, because the mean of its divisors is an integer number (350701608).

Almost surely, 2^1401534671 is an apocalyptic number.

1401534671 is a deficient number, since it is larger than the sum of its proper divisors (1271761).

1401534671 is a wasteful number, since it uses less digits than its factorization.

1401534671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271760.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 1401534671 is about 37437.0761545289. The cubic root of 1401534671 is about 1119.0975593521.

The spelling of 1401534671 in words is "one billion, four hundred one million, five hundred thirty-four thousand, six hundred seventy-one".