145186887 has 8 divisors (see below), whose sum is σ = 193898736. Its totient is φ = 96633152.

The previous prime is 145186841. The next prime is 145186889. The reversal of 145186887 is 788681541.

It is a happy number.

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 145186887 - 2⁶ = 145186823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145186889) 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, 37368 + ... + 41069.

It is an arithmetic number, because the mean of its divisors is an integer number (24237342).

Almost surely, 2^145186887 is an apocalyptic number.

145186887 is a deficient number, since it is larger than the sum of its proper divisors (48711849).

145186887 is an equidigital number, since it uses as much as digits as its factorization.

145186887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79057.

The product of its digits is 430080, while the sum is 48.

The square root of 145186887 is about 12049.3521402605. The cubic root of 145186887 is about 525.5843977690.

The spelling of 145186887 in words is "one hundred forty-five million, one hundred eighty-six thousand, eight hundred eighty-seven".