139134401 has 8 divisors (see below), whose sum is σ = 159223680. Its totient is φ = 119098368.

The previous prime is 139134379. The next prime is 139134407. The reversal of 139134401 is 104431931.

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

It is a cyclic number.

It is not a de Polignac number, because 139134401 - 2²² = 134940097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139134407) 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, 7541 + ... + 18306.

It is an arithmetic number, because the mean of its divisors is an integer number (19902960).

Almost surely, 2^139134401 is an apocalyptic number.

It is an amenable number.

139134401 is a deficient number, since it is larger than the sum of its proper divisors (20089279).

139134401 is an equidigital number, since it uses as much as digits as its factorization.

139134401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26623.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 139134401 is about 11795.5246174132. The cubic root of 139134401 is about 518.1770499864.

The spelling of 139134401 in words is "one hundred thirty-nine million, one hundred thirty-four thousand, four hundred one".