139481353 has 8 divisors (see below), whose sum is σ = 152756640. Its totient is φ = 126305280.

The previous prime is 139481351. The next prime is 139481359. The reversal of 139481353 is 353184931.

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 139481353 - 2¹ = 139481351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139481351) 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, 21843 + ... + 27496.

It is an arithmetic number, because the mean of its divisors is an integer number (19094580).

Almost surely, 2^139481353 is an apocalyptic number.

It is an amenable number.

139481353 is a deficient number, since it is larger than the sum of its proper divisors (13275287).

139481353 is a wasteful number, since it uses less digits than its factorization.

139481353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49607.

The product of its digits is 38880, while the sum is 37.

The square root of 139481353 is about 11810.2223941804. Note that the first 3 decimals coincide. The cubic root of 139481353 is about 518.6074092438.

The spelling of 139481353 in words is "one hundred thirty-nine million, four hundred eighty-one thousand, three hundred fifty-three".