118201545 has 128 divisors (see below), whose sum is σ = 267079680. Its totient is φ = 48176640.

The previous prime is 118201537. The next prime is 118201547. The reversal of 118201545 is 545102811.

118201545 = T₁₆₄₆ + T₁₆₄₇ + ... + T₁₇₂₈.

118201545 is a `hidden beast` number, since 118 + 2 + 0 + 1 + 545 = 666.

It is not a de Polignac number, because 118201545 - 2³ = 118201537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (118201547) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 862717 + ... + 862853.

It is an arithmetic number, because the mean of its divisors is an integer number (2086560).

Almost surely, 2^118201545 is an apocalyptic number.

118201545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

118201545 is an abundant number, since it is smaller than the sum of its proper divisors (148878135).

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

118201545 is a wasteful number, since it uses less digits than its factorization.

118201545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 118201545 is about 10872.0533939086. The cubic root of 118201545 is about 490.7659061927.

The spelling of 118201545 in words is "one hundred eighteen million, two hundred one thousand, five hundred forty-five".