149393744 has 10 divisors (see below), whose sum is σ = 289450410. Its totient is φ = 74696864.

The previous prime is 149393729. The next prime is 149393749. The reversal of 149393744 is 447393941.

It can be written as a sum of positive squares in only one way, i.e., 148547344 + 846400 = 12188^2 + 920^2 .

It is a junction number, because it is equal to n+sod(n) for n = 149393695 and 149393704.

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 as a sum of consecutive naturals, namely, 4668539 + ... + 4668570.

It is an arithmetic number, because the mean of its divisors is an integer number (28945041).

Almost surely, 2^149393744 is an apocalyptic number.

It is an amenable number.

149393744 is a deficient number, since it is larger than the sum of its proper divisors (140056666).

149393744 is an equidigital number, since it uses as much as digits as its factorization.

149393744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9337117 (or 9337111 counting only the distinct ones).

The product of its digits is 326592, while the sum is 44.

The square root of 149393744 is about 12222.6733573306. The cubic root of 149393744 is about 530.6124923303.

The spelling of 149393744 in words is "one hundred forty-nine million, three hundred ninety-three thousand, seven hundred forty-four".