149270851 has 4 divisors (see below), whose sum is σ = 155760912. Its totient is φ = 142780792.

The previous prime is 149270833. The next prime is 149270861. The reversal of 149270851 is 158072941.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 149270851 - 2¹¹ = 149268803 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149270851.

It is not an unprimeable number, because it can be changed into a prime (149270831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3244996 + ... + 3245041.

It is an arithmetic number, because the mean of its divisors is an integer number (38940228).

Almost surely, 2^149270851 is an apocalyptic number.

149270851 is a deficient number, since it is larger than the sum of its proper divisors (6490061).

149270851 is an equidigital number, since it uses as much as digits as its factorization.

149270851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6490060.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 149270851 is about 12217.6450676880. The cubic root of 149270851 is about 530.4669564511.

The spelling of 149270851 in words is "one hundred forty-nine million, two hundred seventy thousand, eight hundred fifty-one".