153945329 has 4 divisors (see below), whose sum is σ = 155800176. Its totient is φ = 152090484.

The previous prime is 153945317. The next prime is 153945343. The reversal of 153945329 is 923549351.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 923549351 = 89 ⋅10376959.

It is a cyclic number.

It is not a de Polignac number, because 153945329 - 2¹² = 153941233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153945229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 927299 + ... + 927464.

It is an arithmetic number, because the mean of its divisors is an integer number (38950044).

Almost surely, 2^153945329 is an apocalyptic number.

It is an amenable number.

153945329 is a deficient number, since it is larger than the sum of its proper divisors (1854847).

153945329 is an equidigital number, since it uses as much as digits as its factorization.

153945329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854846.

The product of its digits is 145800, while the sum is 41.

The square root of 153945329 is about 12407.4706930945. The cubic root of 153945329 is about 535.9474044794.

The spelling of 153945329 in words is "one hundred fifty-three million, nine hundred forty-five thousand, three hundred twenty-nine".