154940423 has 12 divisors (see below), whose sum is σ = 173875992. Its totient is φ = 136825920.

The previous prime is 154940399. The next prime is 154940437. The reversal of 154940423 is 324049451.

It is not a de Polignac number, because 154940423 - 2¹⁰ = 154939399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 154940423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154940453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 250811 + ... + 251427.

It is an arithmetic number, because the mean of its divisors is an integer number (14489666).

Almost surely, 2^154940423 is an apocalyptic number.

154940423 is a deficient number, since it is larger than the sum of its proper divisors (18935569).

154940423 is an frugal number, since it uses more digits than its factorization.

154940423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282 (or 665 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 154940423 is about 12447.5066981304. The cubic root of 154940423 is about 537.0997032558.

Adding to 154940423 its reverse (324049451), we get a palindrome (478989874).

The spelling of 154940423 in words is "one hundred fifty-four million, nine hundred forty thousand, four hundred twenty-three".