149512545 has 96 divisors (see below), whose sum is σ = 330220800. Its totient is φ = 60867072.

The previous prime is 149512543. The next prime is 149512547. The reversal of 149512545 is 545215941.

149512545 is a `hidden beast` number, since 1 + 495 + 125 + 45 = 666.

It is an interprime number because it is at equal distance from previous prime (149512543) and next prime (149512547).

It is not a de Polignac number, because 149512545 - 2¹ = 149512543 is a prime.

It is a super-2 number, since 2×149512545² = 44708002224754050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (149512543) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 118126 + ... + 119384.

It is an arithmetic number, because the mean of its divisors is an integer number (3439800).

Almost surely, 2^149512545 is an apocalyptic number.

149512545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

149512545 is an abundant number, since it is smaller than the sum of its proper divisors (180708255).

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

149512545 is a wasteful number, since it uses less digits than its factorization.

149512545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319 (or 1316 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 149512545 is about 12227.5322530754. The cubic root of 149512545 is about 530.7531064124.

The spelling of 149512545 in words is "one hundred forty-nine million, five hundred twelve thousand, five hundred forty-five".