149129751 has 8 divisors (see below), whose sum is σ = 203689584. Its totient is φ = 96994880.

The previous prime is 149129741. The next prime is 149129753. The reversal of 149129751 is 157921941.

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 149129751 - 2¹³ = 149121559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149129753) 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, 606096 + ... + 606341.

It is an arithmetic number, because the mean of its divisors is an integer number (25461198).

Almost surely, 2^149129751 is an apocalyptic number.

149129751 is a deficient number, since it is larger than the sum of its proper divisors (54559833).

149129751 is a wasteful number, since it uses less digits than its factorization.

149129751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212481.

The product of its digits is 22680, while the sum is 39.

The square root of 149129751 is about 12211.8692672334. The cubic root of 149129751 is about 530.2997604148.

The spelling of 149129751 in words is "one hundred forty-nine million, one hundred twenty-nine thousand, seven hundred fifty-one".