145402143 has 8 divisors (see below), whose sum is σ = 200554800. Its totient is φ = 93592128.

The previous prime is 145402133. The next prime is 145402151. The reversal of 145402143 is 341204541.

145402143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145402143 - 2⁵ = 145402111 is a prime.

It is a super-2 number, since 2×145402143² = 42283566377984898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145402123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835558 + ... + 835731.

It is an arithmetic number, because the mean of its divisors is an integer number (25069350).

Almost surely, 2^145402143 is an apocalyptic number.

145402143 is a deficient number, since it is larger than the sum of its proper divisors (55152657).

145402143 is a wasteful number, since it uses less digits than its factorization.

145402143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671321.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 145402143 is about 12058.2810964084. The cubic root of 145402143 is about 525.8440156348.

Adding to 145402143 its reverse (341204541), we get a palindrome (486606684).

The spelling of 145402143 in words is "one hundred forty-five million, four hundred two thousand, one hundred forty-three".