149503705 has 8 divisors (see below), whose sum is σ = 193204872. Its totient is φ = 110402688.

The previous prime is 149503687. The next prime is 149503747. The reversal of 149503705 is 507305941.

It can be written as a sum of positive squares in 4 ways, for example, as 3069504 + 146434201 = 1752^2 + 12101^2 .

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 149503705 - 2¹¹ = 149501657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1149964 + ... + 1150093.

It is an arithmetic number, because the mean of its divisors is an integer number (24150609).

Almost surely, 2^149503705 is an apocalyptic number.

It is an amenable number.

149503705 is a deficient number, since it is larger than the sum of its proper divisors (43701167).

149503705 is a wasteful number, since it uses less digits than its factorization.

149503705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2300075.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 149503705 is about 12227.1707684157. The cubic root of 149503705 is about 530.7426458633.

The spelling of 149503705 in words is "one hundred forty-nine million, five hundred three thousand, seven hundred five".