1051545 has 16 divisors (see below), whose sum is σ = 1835712. Its totient is φ = 509760.

The previous prime is 1051543. The next prime is 1051549. The reversal of 1051545 is 5451501.

It is not a de Polignac number, because 1051545 - 2¹ = 1051543 is a prime.

It is a super-2 number, since 2×1051545² = 2211493774050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3022 + ... + 3351.

It is an arithmetic number, because the mean of its divisors is an integer number (114732).

2^1051545 is an apocalyptic number.

1051545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1051545 is a deficient number, since it is larger than the sum of its proper divisors (784167).

1051545 is a wasteful number, since it uses less digits than its factorization.

1051545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6392.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 1051545 is about 1025.4486822850. The cubic root of 1051545 is about 101.6894630716.

It can be divided in two parts, 1051 and 545, that added together give a triangular number (1596 = T₅₆).

The spelling of 1051545 in words is "one million, fifty-one thousand, five hundred forty-five".