153949049 has 4 divisors (see below), whose sum is σ = 156246864. Its totient is φ = 151651236.

The previous prime is 153949031. The next prime is 153949063. The reversal of 153949049 is 940949351.

It is a happy number.

153949049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 940949351 = 18433 ⋅51047.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-153949049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153949009) 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, 1148807 + ... + 1148940.

It is an arithmetic number, because the mean of its divisors is an integer number (39061716).

Almost surely, 2^153949049 is an apocalyptic number.

It is an amenable number.

153949049 is a deficient number, since it is larger than the sum of its proper divisors (2297815).

153949049 is an equidigital number, since it uses as much as digits as its factorization.

153949049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297814.

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 153949049 is about 12407.6206018721. The cubic root of 153949049 is about 535.9517213978.

The spelling of 153949049 in words is "one hundred fifty-three million, nine hundred forty-nine thousand, forty-nine".