1071456349 has 2 divisors, whose sum is σ = 1071456350. Its totient is φ = 1071456348.

The previous prime is 1071456319. The next prime is 1071456409. The reversal of 1071456349 is 9436541701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 778019449 + 293436900 = 27893^2 + 17130^2 .

It is a cyclic number.

It is not a de Polignac number, because 1071456349 - 2¹⁹ = 1070932061 is a prime.

It is a super-2 number, since 2×1071456349² = 2296037415624819602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1071456319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535728174 + 535728175.

It is an arithmetic number, because the mean of its divisors is an integer number (535728175).

Almost surely, 2^1071456349 is an apocalyptic number.

It is an amenable number.

1071456349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1071456349 is an equidigital number, since it uses as much as digits as its factorization.

1071456349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 1071456349 is about 32733.1078420611. The cubic root of 1071456349 is about 1023.2729509749.

The spelling of 1071456349 in words is "one billion, seventy-one million, four hundred fifty-six thousand, three hundred forty-nine".