544021154 has 4 divisors (see below), whose sum is σ = 816031734. Its totient is φ = 272010576.

The previous prime is 544021147. The next prime is 544021157. The reversal of 544021154 is 451120445.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 518245225 + 25775929 = 22765^2 + 5077^2 .

It is not an unprimeable number, because it can be changed into a prime (544021157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136005287 + ... + 136005290.

Almost surely, 2^544021154 is an apocalyptic number.

544021154 is a deficient number, since it is larger than the sum of its proper divisors (272010580).

544021154 is a wasteful number, since it uses less digits than its factorization.

544021154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272010579.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 544021154 is about 23324.2610601065. The cubic root of 544021154 is about 816.3416015370.

Adding to 544021154 its reverse (451120445), we get a palindrome (995141599).

The spelling of 544021154 in words is "five hundred forty-four million, twenty-one thousand, one hundred fifty-four".