154139682 has 16 divisors (see below), whose sum is σ = 309335040. Its totient is φ = 51203952.

The previous prime is 154139653. The next prime is 154139701. The reversal of 154139682 is 286931451.

It is a super-3 number, since 3×154139682³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 154139682.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42082 + ... + 45597.

It is an arithmetic number, because the mean of its divisors is an integer number (19333440).

Almost surely, 2^154139682 is an apocalyptic number.

154139682 is an abundant number, since it is smaller than the sum of its proper divisors (155195358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154139682 is a wasteful number, since it uses less digits than its factorization.

154139682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87977.

The product of its digits is 51840, while the sum is 39.

The square root of 154139682 is about 12415.3003185585. The cubic root of 154139682 is about 536.1728507092.

The spelling of 154139682 in words is "one hundred fifty-four million, one hundred thirty-nine thousand, six hundred eighty-two".