1342531 has 2 divisors, whose sum is σ = 1342532.
Its totient is φ = 1342530.
The previous prime is 1342519. The next prime is 1342547. The reversal of 1342531 is 1352431.
Adding to 1342531 its reverse (1352431), we get a palindrome (2694962).
It can be divided in two parts, 13425 and 31, that added together give a square (13456 = 1162).
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 1342531 - 25 = 1342499 is a prime.
It is a super-2 number, since 2×13425312 = 3604778971922, which contains 22 as substring.
1342531 is a lucky number.
It is a junction number, because it is equal to n+sod(n) for n = 1342499 and 1342508.
It is not a weakly prime, because it can be changed into another prime (1342501) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671265 + 671266.
It is an arithmetic number, because the mean of its divisors is an integer number (671266).
21342531 is an apocalyptic number.
1342531 is a deficient number, since it is larger than the sum of its proper divisors (1).
1342531 is an equidigital number, since it uses as much as digits as its factorization.
1342531 is an evil number, because the sum of its binary digits is even.
The product of its digits is 360, while the sum is 19.
The square root of 1342531 is about 1158.6764000358.
The cubic root of 1342531 is about 110.3167454569.
The spelling of 1342531 in words is "one million, three hundred forty-two thousand, five hundred thirty-one".