149393743 has 4 divisors (see below), whose sum is σ = 154212928. Its totient is φ = 144574560.

The previous prime is 149393729. The next prime is 149393749. The reversal of 149393743 is 347393941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 347393941 = 6043 ⋅57487.

It is a cyclic number.

It is not a de Polignac number, because 149393743 - 2⁵ = 149393711 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 149393743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149393749) 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, 2409546 + ... + 2409607.

It is an arithmetic number, because the mean of its divisors is an integer number (38553232).

Almost surely, 2^149393743 is an apocalyptic number.

149393743 is a deficient number, since it is larger than the sum of its proper divisors (4819185).

149393743 is an equidigital number, since it uses as much as digits as its factorization.

149393743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4819184.

The product of its digits is 244944, while the sum is 43.

The square root of 149393743 is about 12222.6733164230. The cubic root of 149393743 is about 530.6124911464.

The spelling of 149393743 in words is "one hundred forty-nine million, three hundred ninety-three thousand, seven hundred forty-three".