139471149 has 8 divisors (see below), whose sum is σ = 194046912. Its totient is φ = 88938080.

The previous prime is 139471147. The next prime is 139471181. The reversal of 139471149 is 941174931.

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 139471149 - 2¹ = 139471147 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139471147) 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, 1010592 + ... + 1010729.

It is an arithmetic number, because the mean of its divisors is an integer number (24255864).

Almost surely, 2^139471149 is an apocalyptic number.

It is an amenable number.

139471149 is a deficient number, since it is larger than the sum of its proper divisors (54575763).

139471149 is a wasteful number, since it uses less digits than its factorization.

139471149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021347.

The product of its digits is 27216, while the sum is 39.

The square root of 139471149 is about 11809.7903876402. The cubic root of 139471149 is about 518.5947623943.

The spelling of 139471149 in words is "one hundred thirty-nine million, four hundred seventy-one thousand, one hundred forty-nine".