153540461 has 2 divisors, whose sum is σ = 153540462. Its totient is φ = 153540460.

The previous prime is 153540437. The next prime is 153540469. The reversal of 153540461 is 164045351.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79477225 + 74063236 = 8915^2 + 8606^2 .

It is an emirp because it is prime and its reverse (164045351) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-153540461 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153540469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76770230 + 76770231.

It is an arithmetic number, because the mean of its divisors is an integer number (76770231).

Almost surely, 2^153540461 is an apocalyptic number.

It is an amenable number.

153540461 is a deficient number, since it is larger than the sum of its proper divisors (1).

153540461 is an equidigital number, since it uses as much as digits as its factorization.

153540461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 153540461 is about 12391.1444588464. The cubic root of 153540461 is about 535.4771543029.

The spelling of 153540461 in words is "one hundred fifty-three million, five hundred forty thousand, four hundred sixty-one".