103145456 has 10 divisors (see below), whose sum is σ = 199844352. Its totient is φ = 51572720.

The previous prime is 103145453. The next prime is 103145467. The reversal of 103145456 is 654541301.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103145453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3223280 + ... + 3223311.

Almost surely, 2^103145456 is an apocalyptic number.

103145456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

103145456 is a deficient number, since it is larger than the sum of its proper divisors (96698896).

103145456 is an equidigital number, since it uses as much as digits as its factorization.

103145456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6446599 (or 6446593 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 103145456 is about 10156.0551396691. The cubic root of 103145456 is about 468.9753685826.

Adding to 103145456 its reverse (654541301), we get a palindrome (757686757).

The spelling of 103145456 in words is "one hundred three million, one hundred forty-five thousand, four hundred fifty-six".