1957150609 has 2 divisors, whose sum is σ = 1957150610. Its totient is φ = 1957150608.

The previous prime is 1957150583. The next prime is 1957150639. The reversal of 1957150609 is 9060517591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1344835584 + 612315025 = 36672^2 + 24745^2 .

It is a cyclic number.

It is not a de Polignac number, because 1957150609 - 2⁵ = 1957150577 is a prime.

It is not a weakly prime, because it can be changed into another prime (1957150639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 978575304 + 978575305.

It is an arithmetic number, because the mean of its divisors is an integer number (978575305).

Almost surely, 2^1957150609 is an apocalyptic number.

It is an amenable number.

1957150609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1957150609 is an equidigital number, since it uses as much as digits as its factorization.

1957150609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 85050, while the sum is 43.

The square root of 1957150609 is about 44239.6949469591. The cubic root of 1957150609 is about 1250.8582072361.

The spelling of 1957150609 in words is "one billion, nine hundred fifty-seven million, one hundred fifty thousand, six hundred nine".