154216642 has 16 divisors (see below), whose sum is σ = 233625600. Its totient is φ = 76345632.

The previous prime is 154216627. The next prime is 154216649. The reversal of 154216642 is 246612451.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (154216649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91903 + ... + 93565.

It is an arithmetic number, because the mean of its divisors is an integer number (14601600).

Almost surely, 2^154216642 is an apocalyptic number.

154216642 is a deficient number, since it is larger than the sum of its proper divisors (79408958).

154216642 is a wasteful number, since it uses less digits than its factorization.

154216642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097.

The product of its digits is 11520, while the sum is 31.

The square root of 154216642 is about 12418.3993332474. The cubic root of 154216642 is about 536.2620706437.

The spelling of 154216642 in words is "one hundred fifty-four million, two hundred sixteen thousand, six hundred forty-two".