1415490121 has 2 divisors, whose sum is σ = 1415490122. Its totient is φ = 1415490120.

The previous prime is 1415490079. The next prime is 1415490137. The reversal of 1415490121 is 1210945141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1084977721 + 330512400 = 32939^2 + 18180^2 .

It is a cyclic number.

It is not a de Polignac number, because 1415490121 - 2⁷ = 1415489993 is a prime.

It is a super-2 number, since 2×1415490121² = 4007224565297189282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1415490121.

It is not a weakly prime, because it can be changed into another prime (1415490161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 707745060 + 707745061.

It is an arithmetic number, because the mean of its divisors is an integer number (707745061).

Almost surely, 2^1415490121 is an apocalyptic number.

It is an amenable number.

1415490121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1415490121 is an equidigital number, since it uses as much as digits as its factorization.

1415490121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 1415490121 is about 37622.9998936821. Note that the first 3 decimals coincide. The cubic root of 1415490121 is about 1122.7996818245.

It can be divided in two parts, 1415 and 490121, that added together give a triangular number (491536 = T₉₉₁).

The spelling of 1415490121 in words is "one billion, four hundred fifteen million, four hundred ninety thousand, one hundred twenty-one".