146193487 has 4 divisors (see below), whose sum is σ = 159483816. Its totient is φ = 132903160.

The previous prime is 146193479. The next prime is 146193493. The reversal of 146193487 is 784391641.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 146193487 - 2³ = 146193479 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 (146193407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6645148 + ... + 6645169.

It is an arithmetic number, because the mean of its divisors is an integer number (39870954).

Almost surely, 2^146193487 is an apocalyptic number.

146193487 is a deficient number, since it is larger than the sum of its proper divisors (13290329).

146193487 is a wasteful number, since it uses less digits than its factorization.

146193487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13290328.

The product of its digits is 145152, while the sum is 43.

The square root of 146193487 is about 12091.0498717026. The cubic root of 146193487 is about 526.7962502714.

The spelling of 146193487 in words is "one hundred forty-six million, one hundred ninety-three thousand, four hundred eighty-seven".