154490 has 16 divisors (see below), whose sum is σ = 317952. Its totient is φ = 52944.

The previous prime is 154487. The next prime is 154493. The reversal of 154490 is 94451.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (154487) and next prime (154493).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 154490.

It is not an unprimeable number, because it can be changed into a prime (154493) 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 7 ways as a sum of consecutive naturals, for example, 1034 + ... + 1173.

It is an arithmetic number, because the mean of its divisors is an integer number (19872).

2¹⁵⁴⁴⁹⁰ is an apocalyptic number.

154490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

154490 is an abundant number, since it is smaller than the sum of its proper divisors (163462).

It is a weird number, because it is abundant, but not a pseudoperfect number.

154490 is a wasteful number, since it uses less digits than its factorization.

154490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 154490 is about 393.0521593885. The cubic root of 154490 is about 53.6578735556.

The spelling of 154490 in words is "one hundred fifty-four thousand, four hundred ninety".