153273481 has 2 divisors, whose sum is σ = 153273482. Its totient is φ = 153273480.

The previous prime is 153273473. The next prime is 153273503. The reversal of 153273481 is 184372351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149817600 + 3455881 = 12240^2 + 1859^2 .

It is a cyclic number.

It is not a de Polignac number, because 153273481 - 2³ = 153273473 is a prime.

It is a super-2 number, since 2×153273481² = 46985519955714722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (153273181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76636740 + 76636741.

It is an arithmetic number, because the mean of its divisors is an integer number (76636741).

Almost surely, 2^153273481 is an apocalyptic number.

It is an amenable number.

153273481 is a deficient number, since it is larger than the sum of its proper divisors (1).

153273481 is an equidigital number, since it uses as much as digits as its factorization.

153273481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 34.

The square root of 153273481 is about 12380.3667554721. The cubic root of 153273481 is about 535.1666072074.

The spelling of 153273481 in words is "one hundred fifty-three million, two hundred seventy-three thousand, four hundred eighty-one".