145278510 has 64 divisors (see below), whose sum is σ = 384265728. Its totient is φ = 34925184.

The previous prime is 145278509. The next prime is 145278521. The reversal of 145278510 is 15872541.

It is a super-2 number, since 2×145278510² = 42211690935640200, which contains 22 as substring.

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, 12439 + ... + 21101.

It is an arithmetic number, because the mean of its divisors is an integer number (6004152).

Almost surely, 2^145278510 is an apocalyptic number.

145278510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145278510, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192132864).

145278510 is an abundant number, since it is smaller than the sum of its proper divisors (238987218).

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

145278510 is a wasteful number, since it uses less digits than its factorization.

145278510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8729.

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 145278510 is about 12053.1535292636. The cubic root of 145278510 is about 525.6949345949.

The spelling of 145278510 in words is "one hundred forty-five million, two hundred seventy-eight thousand, five hundred ten".