45271787 has 12 divisors (see below), whose sum is σ = 50143128. Its totient is φ = 40840800.

The previous prime is 45271781. The next prime is 45271823. The reversal of 45271787 is 78717254.

It is not a de Polignac number, because 45271787 - 2¹⁰ = 45270763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45271781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15212 + ... + 17942.

It is an arithmetic number, because the mean of its divisors is an integer number (4178594).

Almost surely, 2^45271787 is an apocalyptic number.

45271787 is a deficient number, since it is larger than the sum of its proper divisors (4871341).

45271787 is a wasteful number, since it uses less digits than its factorization.

45271787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2890 (or 2879 counting only the distinct ones).

The product of its digits is 109760, while the sum is 41.

The square root of 45271787 is about 6728.4312436110. The cubic root of 45271787 is about 356.4039805479.

The spelling of 45271787 in words is "forty-five million, two hundred seventy-one thousand, seven hundred eighty-seven".