145298916 has 135 divisors (see below), whose sum is σ = 439177193. Its totient is φ = 40501440.

The previous prime is 145298893. The next prime is 145298921. The reversal of 145298916 is 619892541.

The square root of 145298916 is 12054.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7001316 + 138297600 = 2646^2 + 11760^2 .

It is a super-2 number, since 2×145298916² = 42223549981550112, which contains 22 as substring.

Its product of digits (155520) is a multiple of the sum of its prime factors (120).

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 3543856 + ... + 3543896.

Almost surely, 2^145298916 is an apocalyptic number.

145298916 is the 12054-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145298916

145298916 is an abundant number, since it is smaller than the sum of its proper divisors (293878277).

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

145298916 is an equidigital number, since it uses as much as digits as its factorization.

145298916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 53 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The cubic root of 145298916 is about 525.7195466972.

The spelling of 145298916 in words is "one hundred forty-five million, two hundred ninety-eight thousand, nine hundred sixteen".