1970542061 has 2 divisors, whose sum is σ = 1970542062. Its totient is φ = 1970542060.

The previous prime is 1970542039. The next prime is 1970542081. The reversal of 1970542061 is 1602450791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1266648100 + 703893961 = 35590^2 + 26531^2 .

It is a cyclic number.

It is not a de Polignac number, because 1970542061 - 2²⁶ = 1903433197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1970542031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 985271030 + 985271031.

It is an arithmetic number, because the mean of its divisors is an integer number (985271031).

Almost surely, 2^1970542061 is an apocalyptic number.

It is an amenable number.

1970542061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1970542061 is an equidigital number, since it uses as much as digits as its factorization.

1970542061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 1970542061 is about 44390.7880195880. The cubic root of 1970542061 is about 1253.7046492921.

The spelling of 1970542061 in words is "one billion, nine hundred seventy million, five hundred forty-two thousand, sixty-one".