149440071 has 8 divisors (see below), whose sum is σ = 217367424. Its totient is φ = 90569720.

The previous prime is 149440069. The next prime is 149440141. The reversal of 149440071 is 170044941.

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 149440071 - 2¹ = 149440069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149440001) 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, 2264211 + ... + 2264276.

It is an arithmetic number, because the mean of its divisors is an integer number (27170928).

Almost surely, 2^149440071 is an apocalyptic number.

149440071 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

149440071 is a deficient number, since it is larger than the sum of its proper divisors (67927353).

149440071 is a wasteful number, since it uses less digits than its factorization.

149440071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4528501.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 149440071 is about 12224.5683359373. The cubic root of 149440071 is about 530.6673343064.

The spelling of 149440071 in words is "one hundred forty-nine million, four hundred forty thousand, seventy-one".