149029171201 has 4 divisors (see below), whose sum is σ = 149031419904. Its totient is φ = 149026922500.

The previous prime is 149029171157. The next prime is 149029171217. The reversal of 149029171201 is 102171920941.

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: 102171920941 = 10301 ⋅9918641.

It is a cyclic number.

It is not a de Polignac number, because 149029171201 - 2¹¹ = 149029169153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149029171261) 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, 1021825 + ... + 1158526.

It is an arithmetic number, because the mean of its divisors is an integer number (37257854976).

Almost surely, 2^149029171201 is an apocalyptic number.

It is an amenable number.

149029171201 is a deficient number, since it is larger than the sum of its proper divisors (2248703).

149029171201 is an equidigital number, since it uses as much as digits as its factorization.

149029171201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2248702.

The product of its (nonzero) digits is 9072, while the sum is 37.

The spelling of 149029171201 in words is "one hundred forty-nine billion, twenty-nine million, one hundred seventy-one thousand, two hundred one".