145530847 has 16 divisors (see below), whose sum is σ = 185306112. Its totient is φ = 110985120.

The previous prime is 145530841. The next prime is 145530893. The reversal of 145530847 is 748035541.

It is a cyclic number.

It is not a de Polignac number, because 145530847 - 2³ = 145530839 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 (145530841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16488 + ... + 23725.

It is an arithmetic number, because the mean of its divisors is an integer number (11581632).

Almost surely, 2^145530847 is an apocalyptic number.

145530847 is a deficient number, since it is larger than the sum of its proper divisors (39775265).

145530847 is a wasteful number, since it uses less digits than its factorization.

145530847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40278.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 145530847 is about 12063.6166633394. The cubic root of 145530847 is about 525.9991217149. Note that the first 3 decimals are identical.

The spelling of 145530847 in words is "one hundred forty-five million, five hundred thirty thousand, eight hundred forty-seven".