1481617531 has 2 divisors, whose sum is σ = 1481617532. Its totient is φ = 1481617530.

The previous prime is 1481617523. The next prime is 1481617559. The reversal of 1481617531 is 1357161841.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1481617531 - 2³ = 1481617523 is a prime.

It is a super-2 number, since 2×1481617531² = 4390381016333071922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1481617561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 740808765 + 740808766.

It is an arithmetic number, because the mean of its divisors is an integer number (740808766).

Almost surely, 2^1481617531 is an apocalyptic number.

1481617531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1481617531 is an equidigital number, since it uses as much as digits as its factorization.

1481617531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 37.

The square root of 1481617531 is about 38491.7852404900. The cubic root of 1481617531 is about 1140.0188595936.

The spelling of 1481617531 in words is "one billion, four hundred eighty-one million, six hundred seventeen thousand, five hundred thirty-one".