154229946 has 64 divisors (see below), whose sum is σ = 352235520. Its totient is φ = 44674560.

The previous prime is 154229939. The next prime is 154229981. The reversal of 154229946 is 649922451.

154229946 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 154229898 and 154229907.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91911 + ... + 93573.

It is an arithmetic number, because the mean of its divisors is an integer number (5503680).

Almost surely, 2^154229946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154229946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176117760).

154229946 is an abundant number, since it is smaller than the sum of its proper divisors (198005574).

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

154229946 is a wasteful number, since it uses less digits than its factorization.

154229946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751.

The product of its digits is 155520, while the sum is 42.

The square root of 154229946 is about 12418.9349784915. The cubic root of 154229946 is about 536.2774909972.

The spelling of 154229946 in words is "one hundred fifty-four million, two hundred twenty-nine thousand, nine hundred forty-six".