149291505 has 160 divisors (see below), whose sum is σ = 321159168. Its totient is φ = 65577600.

The previous prime is 149291491. The next prime is 149291509. The reversal of 149291505 is 505192941.

149291505 is a `hidden beast` number, since 149 + 2 + 9 + 1 + 505 = 666.

It is not a de Polignac number, because 149291505 - 2⁴ = 149291489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149291505.

It is not an unprimeable number, because it can be changed into a prime (149291509) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 3176392 + ... + 3176438.

Almost surely, 2^149291505 is an apocalyptic number.

149291505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149291505 is an abundant number, since it is smaller than the sum of its proper divisors (171867663).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149291505 is a wasteful number, since it uses less digits than its factorization.

149291505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The square root of 149291505 is about 12218.4902913576. The cubic root of 149291505 is about 530.4914215072.

The spelling of 149291505 in words is "one hundred forty-nine million, two hundred ninety-one thousand, five hundred five".