145131066 has 48 divisors (see below), whose sum is σ = 322849800. Its totient is φ = 47099520.

The previous prime is 145131047. The next prime is 145131113. The reversal of 145131066 is 660131541.

It can be written as a sum of positive squares in 4 ways, for example, as 117094041 + 28037025 = 10821^2 + 5295^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141636 + ... + 142656.

Almost surely, 2^145131066 is an apocalyptic number.

145131066 is an abundant number, since it is smaller than the sum of its proper divisors (177718734).

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

145131066 is a wasteful number, since it uses less digits than its factorization.

145131066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 145131066 is about 12047.0355689688. The cubic root of 145131066 is about 525.5170307864.

The spelling of 145131066 in words is "one hundred forty-five million, one hundred thirty-one thousand, sixty-six".