1487223131 has 2 divisors, whose sum is σ = 1487223132. Its totient is φ = 1487223130.

The previous prime is 1487223113. The next prime is 1487223137. The reversal of 1487223131 is 1313227841.

Together with previous prime (1487223113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1487223131 is a prime.

It is a super-2 number, since 2×1487223131² = 4423665282762886322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1487223137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 743611565 + 743611566.

It is an arithmetic number, because the mean of its divisors is an integer number (743611566).

Almost surely, 2^1487223131 is an apocalyptic number.

1487223131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1487223131 is an equidigital number, since it uses as much as digits as its factorization.

1487223131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 32.

The square root of 1487223131 is about 38564.5320339817. The cubic root of 1487223131 is about 1141.4547783680.

The spelling of 1487223131 in words is "one billion, four hundred eighty-seven million, two hundred twenty-three thousand, one hundred thirty-one".