149930551 has 8 divisors (see below), whose sum is σ = 158708880. Its totient is φ = 141392832.

The previous prime is 149930527. The next prime is 149930591. The reversal of 149930551 is 155039941.

It is a happy number.

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 149930551 - 2¹¹ = 149928503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149930551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149930591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58870 + ... + 61363.

It is an arithmetic number, because the mean of its divisors is an integer number (19838610).

Almost surely, 2^149930551 is an apocalyptic number.

149930551 is a deficient number, since it is larger than the sum of its proper divisors (8778329).

149930551 is a wasteful number, since it uses less digits than its factorization.

149930551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120305.

The product of its (nonzero) digits is 24300, while the sum is 37.

The square root of 149930551 is about 12244.6131421127. The cubic root of 149930551 is about 531.2472712939.

The spelling of 149930551 in words is "one hundred forty-nine million, nine hundred thirty thousand, five hundred fifty-one".