145802 has 4 divisors (see below), whose sum is σ = 218706. Its totient is φ = 72900.

The previous prime is 145799. The next prime is 145807. The reversal of 145802 is 208541.

145802 = T₂₆₈ + T₂₆₉ + ... + T₂₇₁.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 208541 = 23 ⋅9067.

It can be written as a sum of positive squares in only one way, i.e., 73441 + 72361 = 271^2 + 269^2 .

It is not an unprimeable number, because it can be changed into a prime (145807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36449 + ... + 36452.

2¹⁴⁵⁸⁰² is an apocalyptic number.

145802 is a deficient number, since it is larger than the sum of its proper divisors (72904).

145802 is an equidigital number, since it uses as much as digits as its factorization.

145802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72903.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 145802 is about 381.8402807458. The cubic root of 145802 is about 52.6325599466.

The spelling of 145802 in words is "one hundred forty-five thousand, eight hundred two".