149743753 has 4 divisors (see below), whose sum is σ = 149776128. Its totient is φ = 149711380.

The previous prime is 149743729. The next prime is 149743771. The reversal of 149743753 is 357347941.

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: 357347941 = 23 ⋅15536867.

It is a cyclic number.

It is not a de Polignac number, because 149743753 - 2⁵ = 149743721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149743793) 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, 7801 + ... + 18982.

It is an arithmetic number, because the mean of its divisors is an integer number (37444032).

Almost surely, 2^149743753 is an apocalyptic number.

It is an amenable number.

149743753 is a deficient number, since it is larger than the sum of its proper divisors (32375).

149743753 is an equidigital number, since it uses as much as digits as its factorization.

149743753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32374.

The product of its digits is 317520, while the sum is 43.

The square root of 149743753 is about 12236.9830023581. The cubic root of 149743753 is about 531.0265531720.

The spelling of 149743753 in words is "one hundred forty-nine million, seven hundred forty-three thousand, seven hundred fifty-three".