1172295138 has 16 divisors (see below), whose sum is σ = 2679531840. Its totient is φ = 334941456.

The previous prime is 1172295037. The next prime is 1172295139. The reversal of 1172295138 is 8315922711.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1172295096 and 1172295105.

It is not an unprimeable number, because it can be changed into a prime (1172295139) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13955853 + ... + 13955936.

It is an arithmetic number, because the mean of its divisors is an integer number (167470740).

Almost surely, 2^1172295138 is an apocalyptic number.

1172295138 is an abundant number, since it is smaller than the sum of its proper divisors (1507236702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1172295138 is a wasteful number, since it uses less digits than its factorization.

1172295138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27911801.

The product of its digits is 30240, while the sum is 39.

The square root of 1172295138 is about 34238.7958024227. The cubic root of 1172295138 is about 1054.4168105689.

The spelling of 1172295138 in words is "one billion, one hundred seventy-two million, two hundred ninety-five thousand, one hundred thirty-eight".