149641638371 has 2 divisors, whose sum is σ = 149641638372. Its totient is φ = 149641638370.

The previous prime is 149641638353. The next prime is 149641638383. The reversal of 149641638371 is 173836146941.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (173836146941) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149641638371 is a prime.

It is not a weakly prime, because it can be changed into another prime (149641634371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74820819185 + 74820819186.

It is an arithmetic number, because the mean of its divisors is an integer number (74820819186).

Almost surely, 2^149641638371 is an apocalyptic number.

149641638371 is a deficient number, since it is larger than the sum of its proper divisors (1).

149641638371 is an equidigital number, since it uses as much as digits as its factorization.

149641638371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 53.

The spelling of 149641638371 in words is "one hundred forty-nine billion, six hundred forty-one million, six hundred thirty-eight thousand, three hundred seventy-one".