149949745 has 16 divisors (see below), whose sum is σ = 196536960. Its totient is φ = 108921600.

The previous prime is 149949743. The next prime is 149949791. The reversal of 149949745 is 547949941.

It is not a de Polignac number, because 149949745 - 2¹ = 149949743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149949692 and 149949701.

It is not an unprimeable number, because it can be changed into a prime (149949743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80980 + ... + 82810.

It is an arithmetic number, because the mean of its divisors is an integer number (12283560).

Almost surely, 2^149949745 is an apocalyptic number.

It is an amenable number.

149949745 is a deficient number, since it is larger than the sum of its proper divisors (46587215).

149949745 is a wasteful number, since it uses less digits than its factorization.

149949745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336.

The product of its digits is 1632960, while the sum is 52.

The square root of 149949745 is about 12245.3968902604. The cubic root of 149949745 is about 531.2699402896.

The spelling of 149949745 in words is "one hundred forty-nine million, nine hundred forty-nine thousand, seven hundred forty-five".