146257047 has 24 divisors (see below), whose sum is σ = 218100480. Its totient is φ = 94398480.

The previous prime is 146257037. The next prime is 146257073. The reversal of 146257047 is 740752641.

146257047 is a `hidden beast` number, since 1 + 46 + 2 + 570 + 47 = 666.

It is not a de Polignac number, because 146257047 - 2⁴ = 146257031 is a prime.

It is a super-2 number, since 2×146257047² = 42782247594320418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146257037) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33522 + ... + 37632.

It is an arithmetic number, because the mean of its divisors is an integer number (9087520).

Almost surely, 2^146257047 is an apocalyptic number.

146257047 is a deficient number, since it is larger than the sum of its proper divisors (71843433).

146257047 is a wasteful number, since it uses less digits than its factorization.

146257047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4243 (or 4240 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 146257047 is about 12093.6779765297. The cubic root of 146257047 is about 526.8725836273.

The spelling of 146257047 in words is "one hundred forty-six million, two hundred fifty-seven thousand, forty-seven".