1071621052 has 12 divisors (see below), whose sum is σ = 1974038920. Its totient is φ = 507609936.

The previous prime is 1071621043. The next prime is 1071621053. The reversal of 1071621052 is 2501261701.

It is a super-2 number, since 2×1071621052² = 2296743358179173408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071621053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7050063 + ... + 7050214.

Almost surely, 2^1071621052 is an apocalyptic number.

It is an amenable number.

1071621052 is a deficient number, since it is larger than the sum of its proper divisors (902417868).

1071621052 is a wasteful number, since it uses less digits than its factorization.

1071621052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14100300 (or 14100298 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 1071621052 is about 32735.6235926551. The cubic root of 1071621052 is about 1023.3253803902.

Adding to 1071621052 its reverse (2501261701), we get a palindrome (3572882753).

The spelling of 1071621052 in words is "one billion, seventy-one million, six hundred twenty-one thousand, fifty-two".