139298401 has 8 divisors (see below), whose sum is σ = 152759808. Its totient is φ = 125970000.

The previous prime is 139298399. The next prime is 139298413. The reversal of 139298401 is 104892931.

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 139298401 - 2¹ = 139298399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139298431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31050 + ... + 35251.

It is an arithmetic number, because the mean of its divisors is an integer number (19094976).

Almost surely, 2^139298401 is an apocalyptic number.

139298401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

139298401 is a deficient number, since it is larger than the sum of its proper divisors (13461407).

139298401 is a wasteful number, since it uses less digits than its factorization.

139298401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66503.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 139298401 is about 11802.4743592181. The cubic root of 139298401 is about 518.3805646407.

The spelling of 139298401 in words is "one hundred thirty-nine million, two hundred ninety-eight thousand, four hundred one".