153481397 has 2 divisors, whose sum is σ = 153481398. Its totient is φ = 153481396.

The previous prime is 153481387. The next prime is 153481421. The reversal of 153481397 is 793184351.

153481397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107972881 + 45508516 = 10391^2 + 6746^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-153481397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153481387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76740698 + 76740699.

It is an arithmetic number, because the mean of its divisors is an integer number (76740699).

Almost surely, 2^153481397 is an apocalyptic number.

It is an amenable number.

153481397 is a deficient number, since it is larger than the sum of its proper divisors (1).

153481397 is an equidigital number, since it uses as much as digits as its factorization.

153481397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 41.

The square root of 153481397 is about 12388.7609146355. The cubic root of 153481397 is about 535.4084829816.

The spelling of 153481397 in words is "one hundred fifty-three million, four hundred eighty-one thousand, three hundred ninety-seven".