145582861 has 8 divisors (see below), whose sum is σ = 146615040. Its totient is φ = 144554832.

The previous prime is 145582837. The next prime is 145582889. The reversal of 145582861 is 168285541.

It is a happy number.

145582861 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 145582861 - 2²¹ = 143485709 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 (145582831) 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, 101596 + ... + 103018.

It is an arithmetic number, because the mean of its divisors is an integer number (18326880).

Almost surely, 2^145582861 is an apocalyptic number.

It is an amenable number.

145582861 is a deficient number, since it is larger than the sum of its proper divisors (1032179).

145582861 is a wasteful number, since it uses less digits than its factorization.

145582861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075.

The product of its digits is 76800, while the sum is 40.

The square root of 145582861 is about 12065.7722919008. The cubic root of 145582861 is about 526.0617798158.

The spelling of 145582861 in words is "one hundred forty-five million, five hundred eighty-two thousand, eight hundred sixty-one".