145143642 has 16 divisors (see below), whose sum is σ = 331756992. Its totient is φ = 41469600.

The previous prime is 145143623. The next prime is 145143683. The reversal of 145143642 is 246341541.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1727859 + ... + 1727942.

It is an arithmetic number, because the mean of its divisors is an integer number (20734812).

Almost surely, 2^145143642 is an apocalyptic number.

145143642 is an abundant number, since it is smaller than the sum of its proper divisors (186613350).

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

145143642 is a wasteful number, since it uses less digits than its factorization.

145143642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3455813.

The product of its digits is 11520, while the sum is 30.

The square root of 145143642 is about 12047.5575117947. The cubic root of 145143642 is about 525.5322095060.

The spelling of 145143642 in words is "one hundred forty-five million, one hundred forty-three thousand, six hundred forty-two".