1074370021 has 2 divisors, whose sum is σ = 1074370022. Its totient is φ = 1074370020.

The previous prime is 1074370009. The next prime is 1074370057. The reversal of 1074370021 is 1200734701.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 798345025 + 276024996 = 28255^2 + 16614^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1074370021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1074370421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537185010 + 537185011.

It is an arithmetic number, because the mean of its divisors is an integer number (537185011).

Almost surely, 2^1074370021 is an apocalyptic number.

It is an amenable number.

1074370021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1074370021 is an equidigital number, since it uses as much as digits as its factorization.

1074370021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 1074370021 is about 32777.5841239100. The cubic root of 1074370021 is about 1024.1996595160.

The spelling of 1074370021 in words is "one billion, seventy-four million, three hundred seventy thousand, twenty-one".