153672949 has 2 divisors, whose sum is σ = 153672950. Its totient is φ = 153672948.

The previous prime is 153672947. The next prime is 153672971. The reversal of 153672949 is 949276351.

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., 91814724 + 61858225 = 9582^2 + 7865^2 .

It is an emirp because it is prime and its reverse (949276351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 153672949 - 2¹ = 153672947 is a prime.

Together with 153672947, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 153672899 and 153672908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153672947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76836474 + 76836475.

It is an arithmetic number, because the mean of its divisors is an integer number (76836475).

Almost surely, 2^153672949 is an apocalyptic number.

It is an amenable number.

153672949 is a deficient number, since it is larger than the sum of its proper divisors (1).

153672949 is an equidigital number, since it uses as much as digits as its factorization.

153672949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 46.

The square root of 153672949 is about 12396.4893820791. The cubic root of 153672949 is about 535.6311287035.

The spelling of 153672949 in words is "one hundred fifty-three million, six hundred seventy-two thousand, nine hundred forty-nine".