145900 has 18 divisors (see below), whose sum is σ = 316820. Its totient is φ = 58320.

The previous prime is 145897. The next prime is 145903. The reversal of 145900 is 9541.

145900 = T₂₁ + T₂₂ + ... + T₉₅.

It is an interprime number because it is at equal distance from previous prime (145897) and next prime (145903).

It is not an unprimeable number, because it can be changed into a prime (145903) 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, 630 + ... + 829.

2¹⁴⁵⁹⁰⁰ is an apocalyptic number.

145900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145900 is an abundant number, since it is smaller than the sum of its proper divisors (170920).

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

145900 is a wasteful number, since it uses less digits than its factorization.

145900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473 (or 1466 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 145900 is about 381.9685850957. The cubic root of 145900 is about 52.6443495327.

The spelling of 145900 in words is "one hundred forty-five thousand, nine hundred".