7642154 has 32 divisors (see below), whose sum is σ = 12954816. Its totient is φ = 3358080.

The previous prime is 7642139. The next prime is 7642157. The reversal of 7642154 is 4512467.

It is not an unprimeable number, because it can be changed into a prime (7642157) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 71369 + ... + 71475.

It is an arithmetic number, because the mean of its divisors is an integer number (404838).

Almost surely, 2^7642154 is an apocalyptic number.

7642154 is a deficient number, since it is larger than the sum of its proper divisors (5312662).

7642154 is a wasteful number, since it uses less digits than its factorization.

7642154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230.

The product of its digits is 6720, while the sum is 29.

The square root of 7642154 is about 2764.4446096820. Note that the first 3 decimals coincide. The cubic root of 7642154 is about 196.9723478928.

The spelling of 7642154 in words is "seven million, six hundred forty-two thousand, one hundred fifty-four".