139154045 has 8 divisors (see below), whose sum is σ = 167050296. Its totient is φ = 111279616.

The previous prime is 139154039. The next prime is 139154047. The reversal of 139154045 is 540451931.

139154045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1865956 + 137288089 = 1366^2 + 11717^2 .

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 139154045 - 2¹² = 139149949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139154047) 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, 16949 + ... + 23781.

It is an arithmetic number, because the mean of its divisors is an integer number (20881287).

Almost surely, 2^139154045 is an apocalyptic number.

It is an amenable number.

139154045 is a deficient number, since it is larger than the sum of its proper divisors (27896251).

139154045 is an equidigital number, since it uses as much as digits as its factorization.

139154045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10911.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 139154045 is about 11796.3572767189. The cubic root of 139154045 is about 518.2014354988.

The spelling of 139154045 in words is "one hundred thirty-nine million, one hundred fifty-four thousand, forty-five".