1359640531 has 4 divisors (see below), whose sum is σ = 1359755064. Its totient is φ = 1359526000.

The previous prime is 1359640523. The next prime is 1359640559. The reversal of 1359640531 is 1350469531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1350469531 = 13999 ⋅96469.

It is a cyclic number.

It is not a de Polignac number, because 1359640531 - 2³ = 1359640523 is a prime.

It is a super-2 number, since 2×1359640531² = 3697244747075923922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1359640231) 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, 37090 + ... + 63991.

It is an arithmetic number, because the mean of its divisors is an integer number (339938766).

Almost surely, 2^1359640531 is an apocalyptic number.

1359640531 is a deficient number, since it is larger than the sum of its proper divisors (114533).

1359640531 is a wasteful number, since it uses less digits than its factorization.

1359640531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114532.

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 1359640531 is about 36873.3037711567. The cubic root of 1359640531 is about 1107.8340282682.

The spelling of 1359640531 in words is "one billion, three hundred fifty-nine million, six hundred forty thousand, five hundred thirty-one".