1342646531 has 2 divisors, whose sum is σ = 1342646532. Its totient is φ = 1342646530.

The previous prime is 1342646527. The next prime is 1342646561. The reversal of 1342646531 is 1356462431.

It is a weak prime.

It is an emirp because it is prime and its reverse (1356462431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1342646531 - 2² = 1342646527 is a prime.

It is a super-2 number, since 2×1342646531² = 3605399414412667922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1342646491 and 1342646500.

It is not a weakly prime, because it can be changed into another prime (1342646521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671323265 + 671323266.

It is an arithmetic number, because the mean of its divisors is an integer number (671323266).

Almost surely, 2^1342646531 is an apocalyptic number.

1342646531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342646531 is an equidigital number, since it uses as much as digits as its factorization.

1342646531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 35.

The square root of 1342646531 is about 36642.1414630750. The cubic root of 1342646531 is about 1103.1990978815.

The spelling of 1342646531 in words is "one billion, three hundred forty-two million, six hundred forty-six thousand, five hundred thirty-one".