862121134 has 16 divisors (see below), whose sum is σ = 1486775808. Its totient is φ = 367267032.

The previous prime is 862121131. The next prime is 862121137. The reversal of 862121134 is 431121268.

It is an interprime number because it is at equal distance from previous prime (862121131) and next prime (862121137).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (862121131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182034 + ... + 186709.

It is an arithmetic number, because the mean of its divisors is an integer number (92923488).

Almost surely, 2^862121134 is an apocalyptic number.

862121134 is a deficient number, since it is larger than the sum of its proper divisors (624654674).

862121134 is a wasteful number, since it uses less digits than its factorization.

862121134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368919.

The product of its digits is 2304, while the sum is 28.

The square root of 862121134 is about 29361.8993595442. The cubic root of 862121134 is about 951.7497333988.

The spelling of 862121134 in words is "eight hundred sixty-two million, one hundred twenty-one thousand, one hundred thirty-four".