153445428 has 30 divisors (see below), whose sum is σ = 401137506. Its totient is φ = 51148368.

The previous prime is 153445427. The next prime is 153445447. The reversal of 153445428 is 824544351.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 147185424 + 6260004 = 12132^2 + 2502^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 153445392 and 153445401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153445427) 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 9 ways as a sum of consecutive naturals, for example, 236475 + ... + 237122.

Almost surely, 2^153445428 is an apocalyptic number.

153445428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

153445428 is an abundant number, since it is smaller than the sum of its proper divisors (247692078).

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

153445428 is a wasteful number, since it uses less digits than its factorization.

153445428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473613 (or 473602 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 153445428 is about 12387.3091509012. The cubic root of 153445428 is about 535.3666546499.

Adding to 153445428 its reverse (824544351), we get a palindrome (977989779).

It can be divided in two parts, 15 and 3445428, that added together give a palindrome (3445443).

The spelling of 153445428 in words is "one hundred fifty-three million, four hundred forty-five thousand, four hundred twenty-eight".