103572405 has 16 divisors (see below), whose sum is σ = 184128960. Its totient is φ = 55238544.

The previous prime is 103572379. The next prime is 103572421. The reversal of 103572405 is 504275301.

It is a happy number.

It is not a de Polignac number, because 103572405 - 2⁵ = 103572373 is a prime.

It is a super-3 number, since 3×103572405³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383467 + ... + 383736.

It is an arithmetic number, because the mean of its divisors is an integer number (11508060).

Almost surely, 2^103572405 is an apocalyptic number.

103572405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103572405 is a deficient number, since it is larger than the sum of its proper divisors (80556555).

103572405 is an equidigital number, since it uses as much as digits as its factorization.

103572405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767217 (or 767211 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 103572405 is about 10177.0528641646. The cubic root of 103572405 is about 469.6215529061.

The spelling of 103572405 in words is "one hundred three million, five hundred seventy-two thousand, four hundred five".