154640516 has 6 divisors (see below), whose sum is σ = 270620910. Its totient is φ = 77320256.

The previous prime is 154640503. The next prime is 154640543. The reversal of 154640516 is 615046451.

It can be written as a sum of positive squares in only one way, i.e., 91278916 + 63361600 = 9554^2 + 7960^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19330061 + ... + 19330068.

It is an arithmetic number, because the mean of its divisors is an integer number (45103485).

Almost surely, 2^154640516 is an apocalyptic number.

It is an amenable number.

154640516 is a deficient number, since it is larger than the sum of its proper divisors (115980394).

154640516 is a wasteful number, since it uses less digits than its factorization.

154640516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38660133 (or 38660131 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 154640516 is about 12435.4539925167. The cubic root of 154640516 is about 536.7529377060.

Adding to 154640516 its reverse (615046451), we get a palindrome (769686967).

The spelling of 154640516 in words is "one hundred fifty-four million, six hundred forty thousand, five hundred sixteen".