154985534 has 8 divisors (see below), whose sum is σ = 253612728. Its totient is φ = 70447960.

The previous prime is 154985531. The next prime is 154985581. The reversal of 154985534 is 435589451.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154985531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3522377 + ... + 3522420.

It is an arithmetic number, because the mean of its divisors is an integer number (31701591).

Almost surely, 2^154985534 is an apocalyptic number.

154985534 is a deficient number, since it is larger than the sum of its proper divisors (98627194).

154985534 is a wasteful number, since it uses less digits than its factorization.

154985534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7044810.

The product of its digits is 432000, while the sum is 44.

The square root of 154985534 is about 12449.3186158922. The cubic root of 154985534 is about 537.1518238347.

The spelling of 154985534 in words is "one hundred fifty-four million, nine hundred eighty-five thousand, five hundred thirty-four".