1254531 has 4 divisors (see below), whose sum is σ = 1672712. Its totient is φ = 836352.

The previous prime is 1254529. The next prime is 1254541. The reversal of 1254531 is 1354521.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1254531 - 2¹ = 1254529 is a prime.

It is a super-2 number, since 2×1254531² = 3147696059922, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1254498 and 1254507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209086 + ... + 209091.

It is an arithmetic number, because the mean of its divisors is an integer number (418178).

2^1254531 is an apocalyptic number.

1254531 is a deficient number, since it is larger than the sum of its proper divisors (418181).

1254531 is an equidigital number, since it uses as much as digits as its factorization.

1254531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418180.

The product of its digits is 600, while the sum is 21.

The square root of 1254531 is about 1120.0584806161. The cubic root of 1254531 is about 107.8517341347.

It can be divided in two parts, 125 and 4531, that added together give a triangular number (4656 = T₉₆).

The spelling of 1254531 in words is "one million, two hundred fifty-four thousand, five hundred thirty-one".