1050452621 has 4 divisors (see below), whose sum is σ = 1060853244. Its totient is φ = 1040052000.

The previous prime is 1050452609. The next prime is 1050452629. The reversal of 1050452621 is 1262540501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1011876100 + 38576521 = 31810^2 + 6211^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1050452621 is a prime.

It is a super-2 number, since 2×1050452621² = 2206901417931539282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1050452629) 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, 5200160 + ... + 5200361.

It is an arithmetic number, because the mean of its divisors is an integer number (265213311).

Almost surely, 2^1050452621 is an apocalyptic number.

It is an amenable number.

1050452621 is a deficient number, since it is larger than the sum of its proper divisors (10400623).

1050452621 is a wasteful number, since it uses less digits than its factorization.

1050452621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10400622.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1050452621 is about 32410.6868332036. The cubic root of 1050452621 is about 1016.5423810206.

The spelling of 1050452621 in words is "one billion, fifty million, four hundred fifty-two thousand, six hundred twenty-one".