149649716 has 6 divisors (see below), whose sum is σ = 261887010. Its totient is φ = 74824856.

The previous prime is 149649701. The next prime is 149649727. The reversal of 149649716 is 617946941.

It can be written as a sum of positive squares in only one way, i.e., 138062500 + 11587216 = 11750^2 + 3404^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18706211 + ... + 18706218.

It is an arithmetic number, because the mean of its divisors is an integer number (43647835).

Almost surely, 2^149649716 is an apocalyptic number.

It is an amenable number.

149649716 is a deficient number, since it is larger than the sum of its proper divisors (112237294).

149649716 is a wasteful number, since it uses less digits than its factorization.

149649716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37412433 (or 37412431 counting only the distinct ones).

The product of its digits is 326592, while the sum is 47.

The square root of 149649716 is about 12233.1400711346. The cubic root of 149649716 is about 530.9153707917.

The spelling of 149649716 in words is "one hundred forty-nine million, six hundred forty-nine thousand, seven hundred sixteen".