139771990149 has 8 divisors (see below), whose sum is σ = 203304712992. Its totient is φ = 84710297040.

The previous prime is 139771990147. The next prime is 139771990151. The reversal of 139771990149 is 941099177931.

It is an interprime number because it is at equal distance from previous prime (139771990147) and next prime (139771990151).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 139771990149 - 2¹ = 139771990147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 139771990092 and 139771990101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139771990147) 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, 2117757394 + ... + 2117757459.

It is an arithmetic number, because the mean of its divisors is an integer number (25413089124).

Almost surely, 2^139771990149 is an apocalyptic number.

It is an amenable number.

139771990149 is a deficient number, since it is larger than the sum of its proper divisors (63532722843).

139771990149 is a wasteful number, since it uses less digits than its factorization.

139771990149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4235514867.

The product of its (nonzero) digits is 3857868, while the sum is 60.

The spelling of 139771990149 in words is "one hundred thirty-nine billion, seven hundred seventy-one million, nine hundred ninety thousand, one hundred forty-nine".