1234521049 has 2 divisors, whose sum is σ = 1234521050. Its totient is φ = 1234521048.

The previous prime is 1234520983. The next prime is 1234521053. The reversal of 1234521049 is 9401254321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1163287449 + 71233600 = 34107^2 + 8440^2 .

It is a cyclic number.

It is not a de Polignac number, because 1234521049 - 2⁷ = 1234520921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1234521049.

It is not a weakly prime, because it can be changed into another prime (1234521059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617260524 + 617260525.

It is an arithmetic number, because the mean of its divisors is an integer number (617260525).

Almost surely, 2^1234521049 is an apocalyptic number.

It is an amenable number.

1234521049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234521049 is an equidigital number, since it uses as much as digits as its factorization.

1234521049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1234521049 is about 35135.7517210035. The cubic root of 1234521049 is about 1072.7524121229.

The spelling of 1234521049 in words is "one billion, two hundred thirty-four million, five hundred twenty-one thousand, forty-nine".