143601390 has 32 divisors (see below), whose sum is σ = 382937760. Its totient is φ = 38293632.

The previous prime is 143601389. The next prime is 143601421. The reversal of 143601390 is 93106341.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265659 + ... + 266198.

It is an arithmetic number, because the mean of its divisors is an integer number (11966805).

Almost surely, 2^143601390 is an apocalyptic number.

143601390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143601390 is an abundant number, since it is smaller than the sum of its proper divisors (239336370).

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

143601390 is a wasteful number, since it uses less digits than its factorization.

143601390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531873 (or 531867 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 143601390 is about 11983.3797402903. The cubic root of 143601390 is about 523.6641959145.

The spelling of 143601390 in words is "one hundred forty-three million, six hundred one thousand, three hundred ninety".