153490345 has 4 divisors (see below), whose sum is σ = 184188420. Its totient is φ = 122792272.

The previous prime is 153490343. The next prime is 153490361. The reversal of 153490345 is 543094351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543094351 = 59 ⋅9204989.

It can be written as a sum of positive squares in 2 ways, for example, as 83667609 + 69822736 = 9147^2 + 8356^2 .

It is a cyclic number.

It is not a de Polignac number, because 153490345 - 2¹ = 153490343 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 153490345.

It is not an unprimeable number, because it can be changed into a prime (153490343) 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, 15349030 + ... + 15349039.

It is an arithmetic number, because the mean of its divisors is an integer number (46047105).

Almost surely, 2^153490345 is an apocalyptic number.

It is an amenable number.

153490345 is a deficient number, since it is larger than the sum of its proper divisors (30698075).

153490345 is an equidigital number, since it uses as much as digits as its factorization.

153490345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30698074.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 153490345 is about 12389.1220431474. The cubic root of 153490345 is about 535.4188875911.

The spelling of 153490345 in words is "one hundred fifty-three million, four hundred ninety thousand, three hundred forty-five".