145839458 has 8 divisors (see below), whose sum is σ = 228270528. Its totient is φ = 69749284.

The previous prime is 145839457. The next prime is 145839461. The reversal of 145839458 is 854938541.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (145839457) 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, 1585166 + ... + 1585257.

It is an arithmetic number, because the mean of its divisors is an integer number (28533816).

Almost surely, 2^145839458 is an apocalyptic number.

145839458 is a deficient number, since it is larger than the sum of its proper divisors (82431070).

145839458 is a wasteful number, since it uses less digits than its factorization.

145839458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3170448.

The product of its digits is 691200, while the sum is 47.

The square root of 145839458 is about 12076.4008711205. The cubic root of 145839458 is about 526.3706683867.

The spelling of 145839458 in words is "one hundred forty-five million, eight hundred thirty-nine thousand, four hundred fifty-eight".