145711506 has 8 divisors (see below), whose sum is σ = 291423024. Its totient is φ = 48570500.

The previous prime is 145711487. The next prime is 145711507. The reversal of 145711506 is 605117541.

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

145711506 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (145711507) 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 3 ways as a sum of consecutive naturals, for example, 12142620 + ... + 12142631.

It is an arithmetic number, because the mean of its divisors is an integer number (36427878).

Almost surely, 2^145711506 is an apocalyptic number.

145711506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145711506 is a wasteful number, since it uses less digits than its factorization.

145711506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24285256.

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 145711506 is about 12071.1021037849. The cubic root of 145711506 is about 526.2166865430.

The spelling of 145711506 in words is "one hundred forty-five million, seven hundred eleven thousand, five hundred six".