1475213917 has 2 divisors, whose sum is σ = 1475213918. Its totient is φ = 1475213916.

The previous prime is 1475213897. The next prime is 1475213923. The reversal of 1475213917 is 7193125741.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1404300676 + 70913241 = 37474^2 + 8421^2 .

It is an emirp because it is prime and its reverse (7193125741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1475213917 - 2²³ = 1466825309 is a prime.

It is a super-2 number, since 2×1475213917² = 4352512201820965778, 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 1475213917.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1475213977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 737606958 + 737606959.

It is an arithmetic number, because the mean of its divisors is an integer number (737606959).

Almost surely, 2^1475213917 is an apocalyptic number.

It is an amenable number.

1475213917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1475213917 is an equidigital number, since it uses as much as digits as its factorization.

1475213917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 40.

The square root of 1475213917 is about 38408.5136005027. The cubic root of 1475213917 is about 1138.3740843800.

The spelling of 1475213917 in words is "one billion, four hundred seventy-five million, two hundred thirteen thousand, nine hundred seventeen".