166134154 has 4 divisors (see below), whose sum is σ = 249201234. Its totient is φ = 83067076.

The previous prime is 166134151. The next prime is 166134167. The reversal of 166134154 is 451431661.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 122877225 + 43256929 = 11085^2 + 6577^2 .

It is not an unprimeable number, because it can be changed into a prime (166134151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41533537 + ... + 41533540.

Almost surely, 2^166134154 is an apocalyptic number.

166134154 is a deficient number, since it is larger than the sum of its proper divisors (83067080).

166134154 is an equidigital number, since it uses as much as digits as its factorization.

166134154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83067079.

The product of its digits is 8640, while the sum is 31.

The square root of 166134154 is about 12889.3038601780. The cubic root of 166134154 is about 549.7344767928.

The spelling of 166134154 in words is "one hundred sixty-six million, one hundred thirty-four thousand, one hundred fifty-four".