1022155429 has 2 divisors, whose sum is σ = 1022155430. Its totient is φ = 1022155428.

The previous prime is 1022155411. The next prime is 1022155507. The reversal of 1022155429 is 9245512201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1022080900 + 74529 = 31970^2 + 273^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022155429 - 2¹⁷ = 1022024357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1022155429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022155129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511077714 + 511077715.

It is an arithmetic number, because the mean of its divisors is an integer number (511077715).

Almost surely, 2^1022155429 is an apocalyptic number.

It is an amenable number.

1022155429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022155429 is an equidigital number, since it uses as much as digits as its factorization.

1022155429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 1022155429 is about 31971.1655871349. The cubic root of 1022155429 is about 1007.3312642194.

The spelling of 1022155429 in words is "one billion, twenty-two million, one hundred fifty-five thousand, four hundred twenty-nine".