149101273 has 4 divisors (see below), whose sum is σ = 149179648. Its totient is φ = 149022900.

The previous prime is 149101247. The next prime is 149101291. The reversal of 149101273 is 372101941.

149101273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 372101941 = 199 ⋅1869859.

It is a cyclic number.

It is not a de Polignac number, because 149101273 - 2⁵ = 149101241 is a prime.

It is a super-2 number, since 2×149101273² = 44462379220441058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149102273) 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, 36261 + ... + 40162.

It is an arithmetic number, because the mean of its divisors is an integer number (37294912).

Almost surely, 2^149101273 is an apocalyptic number.

It is an amenable number.

149101273 is a deficient number, since it is larger than the sum of its proper divisors (78375).

149101273 is an equidigital number, since it uses as much as digits as its factorization.

149101273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78374.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 149101273 is about 12210.7032148030. The cubic root of 149101273 is about 530.2660027019.

The spelling of 149101273 in words is "one hundred forty-nine million, one hundred one thousand, two hundred seventy-three".