145671700 has 18 divisors (see below), whose sum is σ = 316107806. Its totient is φ = 58268640.

The previous prime is 145671683. The next prime is 145671707. The reversal of 145671700 is 7176541.

It can be written as a sum of positive squares in 3 ways, for example, as 806404 + 144865296 = 898^2 + 12036^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145671707) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 728259 + ... + 728458.

Almost surely, 2^145671700 is an apocalyptic number.

145671700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145671700 is an abundant number, since it is smaller than the sum of its proper divisors (170436106).

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

145671700 is a wasteful number, since it uses less digits than its factorization.

145671700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456731 (or 1456724 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 145671700 is about 12069.4531773399. The cubic root of 145671700 is about 526.1687642484.

The spelling of 145671700 in words is "one hundred forty-five million, six hundred seventy-one thousand, seven hundred".