153402049 has 2 divisors, whose sum is σ = 153402050. Its totient is φ = 153402048.

The previous prime is 153402047. The next prime is 153402059. The reversal of 153402049 is 940204351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95413824 + 57988225 = 9768^2 + 7615^2 .

It is a cyclic number.

It is not a de Polignac number, because 153402049 - 2¹ = 153402047 is a prime.

Together with 153402047, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (153402047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76701024 + 76701025.

It is an arithmetic number, because the mean of its divisors is an integer number (76701025).

Almost surely, 2^153402049 is an apocalyptic number.

It is an amenable number.

153402049 is a deficient number, since it is larger than the sum of its proper divisors (1).

153402049 is an equidigital number, since it uses as much as digits as its factorization.

153402049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 153402049 is about 12385.5580818952. The cubic root of 153402049 is about 535.3162005369.

The spelling of 153402049 in words is "one hundred fifty-three million, four hundred two thousand, forty-nine".