149136071 has 16 divisors (see below), whose sum is σ = 183595008. Its totient is φ = 118324800.

The previous prime is 149136061. The next prime is 149136103. The reversal of 149136071 is 170631941.

149136071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149136071 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 (149136041) 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, 9950 + ... + 19931.

It is an arithmetic number, because the mean of its divisors is an integer number (11474688).

Almost surely, 2^149136071 is an apocalyptic number.

149136071 is a deficient number, since it is larger than the sum of its proper divisors (34458937).

149136071 is a wasteful number, since it uses less digits than its factorization.

149136071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29942.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 149136071 is about 12212.1280291356. The cubic root of 149136071 is about 530.3072515360.

The spelling of 149136071 in words is "one hundred forty-nine million, one hundred thirty-six thousand, seventy-one".