145949501 has 8 divisors (see below), whose sum is σ = 146889600. Its totient is φ = 145013040.

The previous prime is 145949477. The next prime is 145949527. The reversal of 145949501 is 105949541.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145949501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145949591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135995 + ... + 137063.

It is an arithmetic number, because the mean of its divisors is an integer number (18361200).

Almost surely, 2^145949501 is an apocalyptic number.

It is an amenable number.

145949501 is a deficient number, since it is larger than the sum of its proper divisors (940099).

145949501 is a wasteful number, since it uses less digits than its factorization.

145949501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819.

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 145949501 is about 12080.9561293798. The cubic root of 145949501 is about 526.5030259020.

The spelling of 145949501 in words is "one hundred forty-five million, nine hundred forty-nine thousand, five hundred one".