1192872949 has 8 divisors (see below), whose sum is σ = 1264039128. Its totient is φ = 1121817600.

The previous prime is 1192872899. The next prime is 1192873009. The reversal of 1192872949 is 9492782911.

It can be written as a sum of positive squares in 4 ways, for example, as 907093924 + 285779025 = 30118^2 + 16905^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1192872949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1192872896 and 1192872905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1192872449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5002 + ... + 49099.

It is an arithmetic number, because the mean of its divisors is an integer number (158004891).

Almost surely, 2^1192872949 is an apocalyptic number.

It is an amenable number.

1192872949 is a deficient number, since it is larger than the sum of its proper divisors (71166179).

1192872949 is a wasteful number, since it uses less digits than its factorization.

1192872949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55415.

The product of its digits is 653184, while the sum is 52.

The square root of 1192872949 is about 34537.9928339792. The cubic root of 1192872949 is about 1060.5506066097.

The spelling of 1192872949 in words is "one billion, one hundred ninety-two million, eight hundred seventy-two thousand, nine hundred forty-nine".