145861859 has 8 divisors (see below), whose sum is σ = 171362352. Its totient is φ = 122401440.

The previous prime is 145861831. The next prime is 145861867. The reversal of 145861859 is 958168541.

It is a happy number.

145861859 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 a de Polignac number, because none of the positive numbers 2^k-145861859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145861259) 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, 509864 + ... + 510149.

It is an arithmetic number, because the mean of its divisors is an integer number (21420294).

Almost surely, 2^145861859 is an apocalyptic number.

145861859 is a deficient number, since it is larger than the sum of its proper divisors (25500493).

145861859 is a wasteful number, since it uses less digits than its factorization.

145861859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020037.

The product of its digits is 345600, while the sum is 47.

The square root of 145861859 is about 12077.3283055484. The cubic root of 145861859 is about 526.3976172565.

The spelling of 145861859 in words is "one hundred forty-five million, eight hundred sixty-one thousand, eight hundred fifty-nine".