1010551691 has 2 divisors, whose sum is σ = 1010551692. Its totient is φ = 1010551690.

The previous prime is 1010551673. The next prime is 1010551693. The reversal of 1010551691 is 1961550101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1010551691 - 2⁶ = 1010551627 is a prime.

Together with 1010551693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1010551693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505275845 + 505275846.

It is an arithmetic number, because the mean of its divisors is an integer number (505275846).

Almost surely, 2^1010551691 is an apocalyptic number.

1010551691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010551691 is an equidigital number, since it uses as much as digits as its factorization.

1010551691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 29.

The square root of 1010551691 is about 31789.1756892185. The cubic root of 1010551691 is about 1003.5049314368.

The spelling of 1010551691 in words is "one billion, ten million, five hundred fifty-one thousand, six hundred ninety-one".