149712249 has 16 divisors (see below), whose sum is σ = 209380608. Its totient is φ = 95041152.

The previous prime is 149712209. The next prime is 149712253. The reversal of 149712249 is 942217941.

It is not a de Polignac number, because 149712249 - 2¹¹ = 149710201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (149712209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9132 + ... + 19565.

It is an arithmetic number, because the mean of its divisors is an integer number (13086288).

Almost surely, 2^149712249 is an apocalyptic number.

It is an amenable number.

149712249 is a deficient number, since it is larger than the sum of its proper divisors (59668359).

149712249 is a wasteful number, since it uses less digits than its factorization.

149712249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28784.

The product of its digits is 36288, while the sum is 39.

The square root of 149712249 is about 12235.6956892528. The cubic root of 149712249 is about 530.9893103632.

The spelling of 149712249 in words is "one hundred forty-nine million, seven hundred twelve thousand, two hundred forty-nine".