145863487 has 16 divisors (see below), whose sum is σ = 182304000. Its totient is φ = 113379840.

The previous prime is 145863481. The next prime is 145863511. The reversal of 145863487 is 784368541.

It is a happy number.

It is not a de Polignac number, because 145863487 - 2³ = 145863479 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 (145863481) 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, 32464 + ... + 36682.

It is an arithmetic number, because the mean of its divisors is an integer number (11394000).

Almost surely, 2^145863487 is an apocalyptic number.

145863487 is a deficient number, since it is larger than the sum of its proper divisors (36440513).

145863487 is a wasteful number, since it uses less digits than its factorization.

145863487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4686.

The product of its digits is 645120, while the sum is 46.

The square root of 145863487 is about 12077.3957043727. The cubic root of 145863487 is about 526.3995756668.

The spelling of 145863487 in words is "one hundred forty-five million, eight hundred sixty-three thousand, four hundred eighty-seven".