149127743 has 4 divisors (see below), whose sum is σ = 151941528. Its totient is φ = 146313960.

The previous prime is 149127739. The next prime is 149127749. The reversal of 149127743 is 347721941.

It is a happy number.

149127743 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 an emirpimes, since its reverse is a distinct semiprime: 347721941 = 7 ⋅49674563.

It is a cyclic number.

It is not a de Polignac number, because 149127743 - 2² = 149127739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149127697 and 149127706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149127749) 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, 1406813 + ... + 1406918.

It is an arithmetic number, because the mean of its divisors is an integer number (37985382).

Almost surely, 2^149127743 is an apocalyptic number.

149127743 is a deficient number, since it is larger than the sum of its proper divisors (2813785).

149127743 is an equidigital number, since it uses as much as digits as its factorization.

149127743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813784.

The product of its digits is 42336, while the sum is 38.

The square root of 149127743 is about 12211.7870518610. The cubic root of 149127743 is about 530.2973802801.

The spelling of 149127743 in words is "one hundred forty-nine million, one hundred twenty-seven thousand, seven hundred forty-three".