149811695 has 16 divisors (see below), whose sum is σ = 198808992. Its totient is φ = 107458560.

The previous prime is 149811691. The next prime is 149811737. The reversal of 149811695 is 596118941.

It is not a de Polignac number, because 149811695 - 2² = 149811691 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 (149811691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14642 + ... + 22671.

It is an arithmetic number, because the mean of its divisors is an integer number (12425562).

Almost surely, 2^149811695 is an apocalyptic number.

149811695 is a deficient number, since it is larger than the sum of its proper divisors (48997297).

149811695 is a wasteful number, since it uses less digits than its factorization.

149811695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37402.

The product of its digits is 77760, while the sum is 44.

The square root of 149811695 is about 12239.7587803028. The cubic root of 149811695 is about 531.1068537970.

The spelling of 149811695 in words is "one hundred forty-nine million, eight hundred eleven thousand, six hundred ninety-five".