154542452 has 6 divisors (see below), whose sum is σ = 270449298. Its totient is φ = 77271224.

The previous prime is 154542449. The next prime is 154542491. The reversal of 154542452 is 254245451.

It can be written as a sum of positive squares in only one way, i.e., 153908836 + 633616 = 12406^2 + 796^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19317803 + ... + 19317810.

It is an arithmetic number, because the mean of its divisors is an integer number (45074883).

Almost surely, 2^154542452 is an apocalyptic number.

It is an amenable number.

154542452 is a deficient number, since it is larger than the sum of its proper divisors (115906846).

154542452 is a wasteful number, since it uses less digits than its factorization.

154542452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38635617 (or 38635615 counting only the distinct ones).

The product of its digits is 32000, while the sum is 32.

The square root of 154542452 is about 12431.5104472465. The cubic root of 154542452 is about 536.6394545740.

The spelling of 154542452 in words is "one hundred fifty-four million, five hundred forty-two thousand, four hundred fifty-two".