149689297 has 8 divisors (see below), whose sum is σ = 154967040. Its totient is φ = 144439680.

The previous prime is 149689291. The next prime is 149689307. The reversal of 149689297 is 792986941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149689297 - 2¹¹ = 149687249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149689291) 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 7 ways as a sum of consecutive naturals, for example, 4104 + ... + 17782.

It is an arithmetic number, because the mean of its divisors is an integer number (19370880).

Almost surely, 2^149689297 is an apocalyptic number.

It is an amenable number.

149689297 is a deficient number, since it is larger than the sum of its proper divisors (5277743).

149689297 is a wasteful number, since it uses less digits than its factorization.

149689297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14063.

The product of its digits is 1959552, while the sum is 55.

The square root of 149689297 is about 12234.7577417781. The cubic root of 149689297 is about 530.9621741078.

The spelling of 149689297 in words is "one hundred forty-nine million, six hundred eighty-nine thousand, two hundred ninety-seven".