153288981 has 6 divisors (see below), whose sum is σ = 221417430. Its totient is φ = 102192648.

The previous prime is 153288953. The next prime is 153289001. The reversal of 153288981 is 189882351.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 145588356 + 7700625 = 12066^2 + 2775^2 .

It is not a de Polignac number, because 153288981 - 2⁶ = 153288917 is a prime.

It is a super-2 number, since 2×153288981² = 46995023392036722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153288901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8516046 + ... + 8516063.

It is an arithmetic number, because the mean of its divisors is an integer number (36902905).

Almost surely, 2^153288981 is an apocalyptic number.

It is an amenable number.

153288981 is a deficient number, since it is larger than the sum of its proper divisors (68128449).

153288981 is a wasteful number, since it uses less digits than its factorization.

153288981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17032115 (or 17032112 counting only the distinct ones).

The product of its digits is 138240, while the sum is 45.

The square root of 153288981 is about 12380.9927307951. The cubic root of 153288981 is about 535.1846464289.

The spelling of 153288981 in words is "one hundred fifty-three million, two hundred eighty-eight thousand, nine hundred eighty-one".