154042164 has 18 divisors (see below), whose sum is σ = 389384450. Its totient is φ = 51347376.

The previous prime is 154042127. The next prime is 154042169. The reversal of 154042164 is 461240451.

It can be written as a sum of positive squares in only one way, i.e., 141848100 + 12194064 = 11910^2 + 3492^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154042169) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2139439 + ... + 2139510.

Almost surely, 2^154042164 is an apocalyptic number.

It is an amenable number.

154042164 is an abundant number, since it is smaller than the sum of its proper divisors (235342286).

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

154042164 is a wasteful number, since it uses less digits than its factorization.

154042164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4278959 (or 4278954 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 154042164 is about 12411.3723656975. The cubic root of 154042164 is about 536.0597551632.

The spelling of 154042164 in words is "one hundred fifty-four million, forty-two thousand, one hundred sixty-four".