1682506157 has 2 divisors, whose sum is σ = 1682506158. Its totient is φ = 1682506156.

The previous prime is 1682506139. The next prime is 1682506171. The reversal of 1682506157 is 7516052861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1525605481 + 156900676 = 39059^2 + 12526^2 .

It is a cyclic number.

It is not a de Polignac number, because 1682506157 - 2⁶ = 1682506093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1682503157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 841253078 + 841253079.

It is an arithmetic number, because the mean of its divisors is an integer number (841253079).

Almost surely, 2^1682506157 is an apocalyptic number.

It is an amenable number.

1682506157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1682506157 is an equidigital number, since it uses as much as digits as its factorization.

1682506157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 1682506157 is about 41018.3636558067. The cubic root of 1682506157 is about 1189.3752239041.

The spelling of 1682506157 in words is "one billion, six hundred eighty-two million, five hundred six thousand, one hundred fifty-seven".