149228071 has 16 divisors (see below), whose sum is σ = 164586240. Its totient is φ = 134671680.

The previous prime is 149228059. The next prime is 149228089. The reversal of 149228071 is 170822941.

It is a cyclic number.

It is not a de Polignac number, because 149228071 - 2⁵ = 149228039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149228671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136236 + ... + 137326.

It is an arithmetic number, because the mean of its divisors is an integer number (10286640).

Almost surely, 2^149228071 is an apocalyptic number.

149228071 is a deficient number, since it is larger than the sum of its proper divisors (15358169).

149228071 is a wasteful number, since it uses less digits than its factorization.

149228071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 149228071 is about 12215.8941956780. The cubic root of 149228071 is about 530.4162755479.

The spelling of 149228071 in words is "one hundred forty-nine million, two hundred twenty-eight thousand, seventy-one".