153233540 has 12 divisors (see below), whose sum is σ = 321790476. Its totient is φ = 61293408.

The previous prime is 153233513. The next prime is 153233543. The reversal of 153233540 is 45332351.

It can be written as a sum of positive squares in 2 ways, for example, as 41550916 + 111682624 = 6446^2 + 10568^2 .

It is not an unprimeable number, because it can be changed into a prime (153233543) 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, 3830819 + ... + 3830858.

It is an arithmetic number, because the mean of its divisors is an integer number (26815873).

Almost surely, 2^153233540 is an apocalyptic number.

153233540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

153233540 is an abundant number, since it is smaller than the sum of its proper divisors (168556936).

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

153233540 is a wasteful number, since it uses less digits than its factorization.

153233540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7661686 (or 7661684 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 153233540 is about 12378.7535721493. The cubic root of 153233540 is about 535.1201174379.

Adding to 153233540 its reverse (45332351), we get a palindrome (198565891).

The spelling of 153233540 in words is "one hundred fifty-three million, two hundred thirty-three thousand, five hundred forty".