1494941691 has 16 divisors (see below), whose sum is σ = 2050603776. Its totient is φ = 968319456.

The previous prime is 1494941689. The next prime is 1494941729. The reversal of 1494941691 is 1961494941.

It is not a de Polignac number, because 1494941691 - 2¹ = 1494941689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1494941691.

It is not an unprimeable number, because it can be changed into a prime (1494941621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29265 + ... + 62018.

It is an arithmetic number, because the mean of its divisors is an integer number (128162736).

Almost surely, 2^1494941691 is an apocalyptic number.

1494941691 is a deficient number, since it is larger than the sum of its proper divisors (555662085).

1494941691 is a wasteful number, since it uses less digits than its factorization.

1494941691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91442.

The product of its digits is 279936, while the sum is 48.

The square root of 1494941691 is about 38664.4758273017. The cubic root of 1494941691 is about 1143.4260560440.

The spelling of 1494941691 in words is "one billion, four hundred ninety-four million, nine hundred forty-one thousand, six hundred ninety-one".