1401691135 has 16 divisors (see below), whose sum is σ = 1833247584. Its totient is φ = 1022620032.

The previous prime is 1401691111. The next prime is 1401691163. The reversal of 1401691135 is 5311961041.

It is a cyclic number.

It is not a de Polignac number, because 1401691135 - 2⁷ = 1401691007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1401691097 and 1401691106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124512 + ... + 135301.

It is an arithmetic number, because the mean of its divisors is an integer number (114577974).

Almost surely, 2^1401691135 is an apocalyptic number.

1401691135 is a deficient number, since it is larger than the sum of its proper divisors (431556449).

1401691135 is a wasteful number, since it uses less digits than its factorization.

1401691135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259914.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 1401691135 is about 37439.1657893175. The cubic root of 1401691135 is about 1119.1392022665.

The spelling of 1401691135 in words is "one billion, four hundred one million, six hundred ninety-one thousand, one hundred thirty-five".