1457145 has 12 divisors (see below), whose sum is σ = 2525796. Its totient is φ = 777120.

The previous prime is 1457143. The next prime is 1457147. The reversal of 1457145 is 5417541.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1457143) and next prime (1457147).

It can be written as a sum of positive squares in 2 ways, for example, as 710649 + 746496 = 843^2 + 864^2 .

It is not a de Polignac number, because 1457145 - 2¹ = 1457143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1457143) 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, 16146 + ... + 16235.

It is an arithmetic number, because the mean of its divisors is an integer number (210483).

2^1457145 is an apocalyptic number.

1457145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1457145 is a deficient number, since it is larger than the sum of its proper divisors (1068651).

1457145 is a wasteful number, since it uses less digits than its factorization.

1457145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32392 (or 32389 counting only the distinct ones).

The product of its digits is 2800, while the sum is 27.

The square root of 1457145 is about 1207.1226118336. The cubic root of 1457145 is about 113.3707248787.

The spelling of 1457145 in words is "one million, four hundred fifty-seven thousand, one hundred forty-five".