1056150421 has 2 divisors, whose sum is σ = 1056150422. Its totient is φ = 1056150420.

The previous prime is 1056150419. The next prime is 1056150443. The reversal of 1056150421 is 1240516501.

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., 860542225 + 195608196 = 29335^2 + 13986^2 .

It is a cyclic number.

It is not a de Polignac number, because 1056150421 - 2¹ = 1056150419 is a prime.

It is a super-2 number, since 2×1056150421² = 2230907423556954482, which contains 22 as substring.

Together with 1056150419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1056150481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528075210 + 528075211.

It is an arithmetic number, because the mean of its divisors is an integer number (528075211).

Almost surely, 2^1056150421 is an apocalyptic number.

It is an amenable number.

1056150421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056150421 is an equidigital number, since it uses as much as digits as its factorization.

1056150421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1056150421 is about 32498.4679792756. The cubic root of 1056150421 is about 1018.3770232832.

Adding to 1056150421 its reverse (1240516501), we get a palindrome (2296666922).

The spelling of 1056150421 in words is "one billion, fifty-six million, one hundred fifty thousand, four hundred twenty-one".