125242102 has 4 divisors (see below), whose sum is σ = 187863156. Its totient is φ = 62621050.

The previous prime is 125242093. The next prime is 125242123. The reversal of 125242102 is 201242521.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×125242102² = 31371168226756808, 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 125242102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31310524 + ... + 31310527.

It is an arithmetic number, because the mean of its divisors is an integer number (46965789).

Almost surely, 2^125242102 is an apocalyptic number.

125242102 is a deficient number, since it is larger than the sum of its proper divisors (62621054).

125242102 is an equidigital number, since it uses as much as digits as its factorization.

125242102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62621053.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 125242102 is about 11191.1617806196. The cubic root of 125242102 is about 500.3225944875.

Adding to 125242102 its reverse (201242521), we get a palindrome (326484623).

The spelling of 125242102 in words is "one hundred twenty-five million, two hundred forty-two thousand, one hundred two".