149971407 has 8 divisors (see below), whose sum is σ = 204216576. Its totient is φ = 97853592.

The previous prime is 149971387. The next prime is 149971411. The reversal of 149971407 is 704179941.

149971407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 149971407 - 2¹⁰ = 149970383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149971447) 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, 531673 + ... + 531954.

It is an arithmetic number, because the mean of its divisors is an integer number (25527072).

Almost surely, 2^149971407 is an apocalyptic number.

149971407 is a deficient number, since it is larger than the sum of its proper divisors (54245169).

149971407 is a wasteful number, since it uses less digits than its factorization.

149971407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063677.

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 149971407 is about 12246.2813539458. The cubic root of 149971407 is about 531.2955217832.

The spelling of 149971407 in words is "one hundred forty-nine million, nine hundred seventy-one thousand, four hundred seven".