1487616157 has 2 divisors, whose sum is σ = 1487616158. Its totient is φ = 1487616156.

The previous prime is 1487616139. The next prime is 1487616181. The reversal of 1487616157 is 7516167841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1111488921 + 376127236 = 33339^2 + 19394^2 .

It is a cyclic number.

It is not a de Polignac number, because 1487616157 - 2¹¹ = 1487614109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1487616107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 743808078 + 743808079.

It is an arithmetic number, because the mean of its divisors is an integer number (743808079).

Almost surely, 2^1487616157 is an apocalyptic number.

It is an amenable number.

1487616157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1487616157 is an equidigital number, since it uses as much as digits as its factorization.

1487616157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 46.

The square root of 1487616157 is about 38569.6273899554. The cubic root of 1487616157 is about 1141.5553196348. Note that the first 3 decimals are identical.

The spelling of 1487616157 in words is "one billion, four hundred eighty-seven million, six hundred sixteen thousand, one hundred fifty-seven".