1976158134 has 48 divisors (see below), whose sum is σ = 4450275648. Its totient is φ = 657233352.

The previous prime is 1976158133. The next prime is 1976158141. The reversal of 1976158134 is 4318516791.

1976158134 is a `hidden beast` number, since 1 + 9 + 7 + 61 + 581 + 3 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1976158134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1976158133) 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 23 ways as a sum of consecutive naturals, for example, 222609 + ... + 231315.

It is an arithmetic number, because the mean of its divisors is an integer number (92714076).

Almost surely, 2^1976158134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1976158134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2225137824).

1976158134 is an abundant number, since it is smaller than the sum of its proper divisors (2474117514).

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

1976158134 is an equidigital number, since it uses as much as digits as its factorization.

1976158134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9191 (or 9179 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 1976158134 is about 44454.0002024565. Note that the first 3 decimals coincide. The cubic root of 1976158134 is about 1254.8945449821.

The spelling of 1976158134 in words is "one billion, nine hundred seventy-six million, one hundred fifty-eight thousand, one hundred thirty-four".