145540849 has 8 divisors (see below), whose sum is σ = 152268480. Its totient is φ = 138846576.

The previous prime is 145540819. The next prime is 145540861. The reversal of 145540849 is 948045541.

145540849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145540849 - 2¹¹ = 145538801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145540819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 814 + ... + 17080.

It is an arithmetic number, because the mean of its divisors is an integer number (19033560).

Almost surely, 2^145540849 is an apocalyptic number.

It is an amenable number.

145540849 is a deficient number, since it is larger than the sum of its proper divisors (6727631).

145540849 is a wasteful number, since it uses less digits than its factorization.

145540849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16679.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 145540849 is about 12064.0312085140. The cubic root of 145540849 is about 526.0111716750.

The spelling of 145540849 in words is "one hundred forty-five million, five hundred forty thousand, eight hundred forty-nine".