154240244 has 6 divisors (see below), whose sum is σ = 269920434. Its totient is φ = 77120120.

The previous prime is 154240243. The next prime is 154240249. The reversal of 154240244 is 442042451.

It can be written as a sum of positive squares in only one way, i.e., 79210000 + 75030244 = 8900^2 + 8662^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154240243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19280027 + ... + 19280034.

It is an arithmetic number, because the mean of its divisors is an integer number (44986739).

Almost surely, 2^154240244 is an apocalyptic number.

It is an amenable number.

154240244 is a deficient number, since it is larger than the sum of its proper divisors (115680190).

154240244 is a wasteful number, since it uses less digits than its factorization.

154240244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38560065 (or 38560063 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 154240244 is about 12419.3495803927. The cubic root of 154240244 is about 536.2894265580.

Adding to 154240244 its reverse (442042451), we get a palindrome (596282695).

The spelling of 154240244 in words is "one hundred fifty-four million, two hundred forty thousand, two hundred forty-four".