153540438 has 8 divisors (see below), whose sum is σ = 307080888. Its totient is φ = 51180144.

The previous prime is 153540437. The next prime is 153540461. The reversal of 153540438 is 834045351.

It is a sphenic number, since it is the product of 3 distinct primes.

153540438 is an admirable number.

It is a super-2 number, since 2×153540438² = 47149332202463688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 153540399 and 153540408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153540437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12795031 + ... + 12795042.

It is an arithmetic number, because the mean of its divisors is an integer number (38385111).

Almost surely, 2^153540438 is an apocalyptic number.

153540438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

153540438 is a wasteful number, since it uses less digits than its factorization.

153540438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25590078.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 153540438 is about 12391.1435307642. The cubic root of 153540438 is about 535.4771275651.

Adding to 153540438 its reverse (834045351), we get a palindrome (987585789).

It can be divided in two parts, 15 and 3540438, that added together give a palindrome (3540453).

The spelling of 153540438 in words is "one hundred fifty-three million, five hundred forty thousand, four hundred thirty-eight".