145314246 has 64 divisors (see below), whose sum is σ = 364916736. Its totient is φ = 37476000.

The previous prime is 145314217. The next prime is 145314263. The reversal of 145314246 is 642413541.

It is a super-2 number, since 2×145314246² = 42232460181097032, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68721 + ... + 70803.

It is an arithmetic number, because the mean of its divisors is an integer number (5701824).

Almost surely, 2^145314246 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145314246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182458368).

145314246 is an abundant number, since it is smaller than the sum of its proper divisors (219602490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145314246 is a wasteful number, since it uses less digits than its factorization.

145314246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257.

The product of its digits is 11520, while the sum is 30.

The square root of 145314246 is about 12054.6358717300. The cubic root of 145314246 is about 525.7380350141.

Adding to 145314246 its reverse (642413541), we get a palindrome (787727787).

The spelling of 145314246 in words is "one hundred forty-five million, three hundred fourteen thousand, two hundred forty-six".