145638351 has 16 divisors (see below), whose sum is σ = 216017920. Its totient is φ = 96976440.

The previous prime is 145638347. The next prime is 145638407. The reversal of 145638351 is 153836541.

145638351 is a `hidden beast` number, since 14 + 5 + 638 + 3 + 5 + 1 = 666.

It is not a de Polignac number, because 145638351 - 2² = 145638347 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 (145638851) 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, 24036 + ... + 29478.

It is an arithmetic number, because the mean of its divisors is an integer number (13501120).

Almost surely, 2^145638351 is an apocalyptic number.

145638351 is a deficient number, since it is larger than the sum of its proper divisors (70379569).

145638351 is an equidigital number, since it uses as much as digits as its factorization.

145638351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6443 (or 6437 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 145638351 is about 12068.0715526550. The cubic root of 145638351 is about 526.1286087908.

It can be divided in two parts, 14 and 5638351, that added together give a palindrome (5638365).

The spelling of 145638351 in words is "one hundred forty-five million, six hundred thirty-eight thousand, three hundred fifty-one".