153561349 has 2 divisors, whose sum is σ = 153561350. Its totient is φ = 153561348.

The previous prime is 153561347. The next prime is 153561367. The reversal of 153561349 is 943165351.

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., 136072225 + 17489124 = 11665^2 + 4182^2 .

It is a cyclic number.

It is not a de Polignac number, because 153561349 - 2¹ = 153561347 is a prime.

Together with 153561347, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153561347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76780674 + 76780675.

It is an arithmetic number, because the mean of its divisors is an integer number (76780675).

Almost surely, 2^153561349 is an apocalyptic number.

It is an amenable number.

153561349 is a deficient number, since it is larger than the sum of its proper divisors (1).

153561349 is an equidigital number, since it uses as much as digits as its factorization.

153561349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48600, while the sum is 37.

The square root of 153561349 is about 12391.9872901807. The cubic root of 153561349 is about 535.5014357193.

The spelling of 153561349 in words is "one hundred fifty-three million, five hundred sixty-one thousand, three hundred forty-nine".