103102251 has 16 divisors (see below), whose sum is σ = 157250304. Its totient is φ = 58862304.

The previous prime is 103102243. The next prime is 103102271. The reversal of 103102251 is 152201301.

It is not a de Polignac number, because 103102251 - 2³ = 103102243 is a prime.

It is a super-2 number, since 2×103102251² = 21260148322534002, 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 103102251.

It is not an unprimeable number, because it can be changed into a prime (103102201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42565 + ... + 44921.

It is an arithmetic number, because the mean of its divisors is an integer number (9828144).

Almost surely, 2^103102251 is an apocalyptic number.

103102251 is a deficient number, since it is larger than the sum of its proper divisors (54148053).

103102251 is a wasteful number, since it uses less digits than its factorization.

103102251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4450.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 103102251 is about 10153.9278606852. The cubic root of 103102251 is about 468.9098788320.

Adding to 103102251 its reverse (152201301), we get a palindrome (255303552).

It can be divided in two parts, 10310 and 2251, that added together give a triangular number (12561 = T₁₅₈).

The spelling of 103102251 in words is "one hundred three million, one hundred two thousand, two hundred fifty-one".