1487770061 has 2 divisors, whose sum is σ = 1487770062. Its totient is φ = 1487770060.

The previous prime is 1487770057. The next prime is 1487770133. The reversal of 1487770061 is 1600777841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1473101161 + 14668900 = 38381^2 + 3830^2 .

It is a cyclic number.

It is not a de Polignac number, because 1487770061 - 2² = 1487770057 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1487700061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 743885030 + 743885031.

It is an arithmetic number, because the mean of its divisors is an integer number (743885031).

Almost surely, 2^1487770061 is an apocalyptic number.

It is an amenable number.

1487770061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1487770061 is an equidigital number, since it uses as much as digits as its factorization.

1487770061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 65856, while the sum is 41.

The square root of 1487770061 is about 38571.6224833750. The cubic root of 1487770061 is about 1141.5946854955.

The spelling of 1487770061 in words is "one billion, four hundred eighty-seven million, seven hundred seventy thousand, sixty-one".