153352981 has 2 divisors, whose sum is σ = 153352982. Its totient is φ = 153352980.

The previous prime is 153352973. The next prime is 153353003. The reversal of 153352981 is 189253351.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133772356 + 19580625 = 11566^2 + 4425^2 .

It is a cyclic number.

It is not a de Polignac number, because 153352981 - 2³ = 153352973 is a prime.

It is a super-2 number, since 2×153352981² = 47034273563172722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 153352981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153352931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76676490 + 76676491.

It is an arithmetic number, because the mean of its divisors is an integer number (76676491).

Almost surely, 2^153352981 is an apocalyptic number.

It is an amenable number.

153352981 is a deficient number, since it is larger than the sum of its proper divisors (1).

153352981 is an equidigital number, since it uses as much as digits as its factorization.

153352981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 37.

The square root of 153352981 is about 12383.5770680365. The cubic root of 153352981 is about 535.2591180824.

The spelling of 153352981 in words is "one hundred fifty-three million, three hundred fifty-two thousand, nine hundred eighty-one".