1129972693 has 4 divisors (see below), whose sum is σ = 1189444960. Its totient is φ = 1070500428.

The previous prime is 1129972673. The next prime is 1129972699. The reversal of 1129972693 is 3962799211.

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 1129972693 - 2¹³ = 1129964501 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 (1129972699) 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, 29736105 + ... + 29736142.

It is an arithmetic number, because the mean of its divisors is an integer number (297361240).

Almost surely, 2^1129972693 is an apocalyptic number.

It is an amenable number.

1129972693 is a deficient number, since it is larger than the sum of its proper divisors (59472267).

1129972693 is an equidigital number, since it uses as much as digits as its factorization.

1129972693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59472266.

The product of its digits is 367416, while the sum is 49.

The square root of 1129972693 is about 33615.0664583606. The cubic root of 1129972693 is about 1041.5720471396.

The spelling of 1129972693 in words is "one billion, one hundred twenty-nine million, nine hundred seventy-two thousand, six hundred ninety-three".