1047742349 has 2 divisors, whose sum is σ = 1047742350. Its totient is φ = 1047742348.

The previous prime is 1047742337. The next prime is 1047742373. The reversal of 1047742349 is 9432477401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 983261449 + 64480900 = 31357^2 + 8030^2 .

It is a cyclic number.

It is not a de Polignac number, because 1047742349 - 2¹² = 1047738253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1047742049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523871174 + 523871175.

It is an arithmetic number, because the mean of its divisors is an integer number (523871175).

Almost surely, 2^1047742349 is an apocalyptic number.

It is an amenable number.

1047742349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1047742349 is an equidigital number, since it uses as much as digits as its factorization.

1047742349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 1047742349 is about 32368.8484348764. The cubic root of 1047742349 is about 1015.6673679765.

The spelling of 1047742349 in words is "one billion, forty-seven million, seven hundred forty-two thousand, three hundred forty-nine".