153345749 has 2 divisors, whose sum is σ = 153345750. Its totient is φ = 153345748.

The previous prime is 153345743. The next prime is 153345817. The reversal of 153345749 is 947543351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101404900 + 51940849 = 10070^2 + 7207^2 .

It is a cyclic number.

It is not a de Polignac number, because 153345749 - 2²⁴ = 136568533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153345743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76672874 + 76672875.

It is an arithmetic number, because the mean of its divisors is an integer number (76672875).

Almost surely, 2^153345749 is an apocalyptic number.

It is an amenable number.

153345749 is a deficient number, since it is larger than the sum of its proper divisors (1).

153345749 is an equidigital number, since it uses as much as digits as its factorization.

153345749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 41.

The square root of 153345749 is about 12383.2850649575. The cubic root of 153345749 is about 535.2507038241.

The spelling of 153345749 in words is "one hundred fifty-three million, three hundred forty-five thousand, seven hundred forty-nine".