143401408 has 14 divisors (see below), whose sum is σ = 284562296. Its totient is φ = 71700672.

The previous prime is 143401387. The next prime is 143401429. The reversal of 143401408 is 804104341.

It is an interprime number because it is at equal distance from previous prime (143401387) and next prime (143401429).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1120260 + ... + 1120387.

Almost surely, 2^143401408 is an apocalyptic number.

It is an amenable number.

143401408 is a deficient number, since it is larger than the sum of its proper divisors (141160888).

143401408 is an equidigital number, since it uses as much as digits as its factorization.

143401408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240659 (or 2240649 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 143401408 is about 11975.0326930660. The cubic root of 143401408 is about 523.4209947771.

Adding to 143401408 its reverse (804104341), we get a palindrome (947505749).

The spelling of 143401408 in words is "one hundred forty-three million, four hundred one thousand, four hundred eight".