139225353 has 4 divisors (see below), whose sum is σ = 185633808. Its totient is φ = 92816900.

The previous prime is 139225351. The next prime is 139225399. The reversal of 139225353 is 353522931.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 353522931 = 3 ⋅117840977.

It is a cyclic number.

It is not a de Polignac number, because 139225353 - 2¹ = 139225351 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (139225351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23204223 + ... + 23204228.

It is an arithmetic number, because the mean of its divisors is an integer number (46408452).

Almost surely, 2^139225353 is an apocalyptic number.

It is an amenable number.

139225353 is a deficient number, since it is larger than the sum of its proper divisors (46408455).

139225353 is an equidigital number, since it uses as much as digits as its factorization.

139225353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46408454.

The product of its digits is 24300, while the sum is 33.

The square root of 139225353 is about 11799.3793480844. The cubic root of 139225353 is about 518.2899359753.

The spelling of 139225353 in words is "one hundred thirty-nine million, two hundred twenty-five thousand, three hundred fifty-three".