9191429141 has 4 divisors (see below), whose sum is σ = 9198462912. Its totient is φ = 9184395372.

The previous prime is 9191429101. The next prime is 9191429167. The reversal of 9191429141 is 1419241919.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9191429141 - 2¹⁰ = 9191428117 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 (9191429101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3514925 + ... + 3517538.

It is an arithmetic number, because the mean of its divisors is an integer number (2299615728).

Almost surely, 2^9191429141 is an apocalyptic number.

It is an amenable number.

9191429141 is a deficient number, since it is larger than the sum of its proper divisors (7033771).

9191429141 is a wasteful number, since it uses less digits than its factorization.

9191429141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7033770.

The product of its digits is 23328, while the sum is 41.

The square root of 9191429141 is about 95871.9413645098. The cubic root of 9191429141 is about 2094.7282085614.

The spelling of 9191429141 in words is "nine billion, one hundred ninety-one million, four hundred twenty-nine thousand, one hundred forty-one".