167211045 has 24 divisors (see below), whose sum is σ = 290156256. Its totient is φ = 89079648.

The previous prime is 167211043. The next prime is 167211067. The reversal of 167211045 is 540112761.

It is a happy number.

It is not a de Polignac number, because 167211045 - 2¹ = 167211043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167211041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57394 + ... + 60236.

It is an arithmetic number, because the mean of its divisors is an integer number (12089844).

Almost surely, 2^167211045 is an apocalyptic number.

167211045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

167211045 is a deficient number, since it is larger than the sum of its proper divisors (122945211).

167211045 is a wasteful number, since it uses less digits than its factorization.

167211045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4161 (or 4158 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 167211045 is about 12931.0109813580. The cubic root of 167211045 is about 550.9197228686.

It can be divided in two parts, 16721 and 1045, that added together give a triangular number (17766 = T₁₈₈).

The spelling of 167211045 in words is "one hundred sixty-seven million, two hundred eleven thousand, forty-five".