103221542 has 4 divisors (see below), whose sum is σ = 154832316. Its totient is φ = 51610770.

The previous prime is 103221529. The next prime is 103221593. The reversal of 103221542 is 245122301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 245122301 = 31 ⋅7907171.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25805384 + ... + 25805387.

It is an arithmetic number, because the mean of its divisors is an integer number (38708079).

Almost surely, 2^103221542 is an apocalyptic number.

103221542 is a deficient number, since it is larger than the sum of its proper divisors (51610774).

103221542 is an equidigital number, since it uses as much as digits as its factorization.

103221542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51610773.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 103221542 is about 10159.8002933129. The cubic root of 103221542 is about 469.0906546102.

Adding to 103221542 its reverse (245122301), we get a palindrome (348343843).

The spelling of 103221542 in words is "one hundred three million, two hundred twenty-one thousand, five hundred forty-two".