103215141 has 20 divisors (see below), whose sum is σ = 154459404. Its totient is φ = 68688000.

The previous prime is 103215137. The next prime is 103215173. The reversal of 103215141 is 141512301.

It can be written as a sum of positive squares in 2 ways, for example, as 23184225 + 80030916 = 4815^2 + 8946^2 .

It is not a de Polignac number, because 103215141 - 2² = 103215137 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103215121) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 85341 + ... + 86541.

Almost surely, 2^103215141 is an apocalyptic number.

It is an amenable number.

103215141 is a deficient number, since it is larger than the sum of its proper divisors (51244263).

103215141 is a wasteful number, since it uses less digits than its factorization.

103215141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274 (or 2265 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 103215141 is about 10159.4852723945. The cubic root of 103215141 is about 469.0809579542.

Adding to 103215141 its reverse (141512301), we get a palindrome (244727442).

The spelling of 103215141 in words is "one hundred three million, two hundred fifteen thousand, one hundred forty-one".