1408139126 has 4 divisors (see below), whose sum is σ = 2112208692. Its totient is φ = 704069562.

The previous prime is 1408139119. The next prime is 1408139149. The reversal of 1408139126 is 6219318041.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 352034780 + ... + 352034783.

It is an arithmetic number, because the mean of its divisors is an integer number (528052173).

Almost surely, 2^1408139126 is an apocalyptic number.

1408139126 is a deficient number, since it is larger than the sum of its proper divisors (704069566).

1408139126 is an equidigital number, since it uses as much as digits as its factorization.

1408139126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704069565.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1408139126 is about 37525.1798929732. The cubic root of 1408139126 is about 1120.8526473838.

The spelling of 1408139126 in words is "one billion, four hundred eight million, one hundred thirty-nine thousand, one hundred twenty-six".