145383887 has 8 divisors (see below), whose sum is σ = 158723712. Its totient is φ = 132064600.

The previous prime is 145383883. The next prime is 145383907. The reversal of 145383887 is 788383541.

It is a happy number.

145383887 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 145383887 - 2² = 145383883 is a prime.

It is a super-2 number, since 2×145383887² = 42272949198457538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145383883) 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, 12248 + ... + 20994.

It is an arithmetic number, because the mean of its divisors is an integer number (19840464).

Almost surely, 2^145383887 is an apocalyptic number.

145383887 is a deficient number, since it is larger than the sum of its proper divisors (13339825).

145383887 is a wasteful number, since it uses less digits than its factorization.

145383887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10269.

The product of its digits is 645120, while the sum is 47.

The square root of 145383887 is about 12057.5240824972. The cubic root of 145383887 is about 525.8220072243.

The spelling of 145383887 in words is "one hundred forty-five million, three hundred eighty-three thousand, eight hundred eighty-seven".