154420516 has 12 divisors (see below), whose sum is σ = 272912220. Its totient is φ = 76445600.

The previous prime is 154420507. The next prime is 154420531. The reversal of 154420516 is 615024451.

It can be written as a sum of positive squares in 2 ways, for example, as 81830116 + 72590400 = 9046^2 + 8520^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190711 + ... + 191518.

It is an arithmetic number, because the mean of its divisors is an integer number (22742685).

Almost surely, 2^154420516 is an apocalyptic number.

It is an amenable number.

154420516 is a deficient number, since it is larger than the sum of its proper divisors (118491704).

154420516 is a wasteful number, since it uses less digits than its factorization.

154420516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382334 (or 382332 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 154420516 is about 12426.6051679451. The cubic root of 154420516 is about 536.4982789399.

Adding to 154420516 its reverse (615024451), we get a palindrome (769444967).

The spelling of 154420516 in words is "one hundred fifty-four million, four hundred twenty thousand, five hundred sixteen".