102203045 has 32 divisors (see below), whose sum is σ = 145981440. Its totient is φ = 67233600.

The previous prime is 102203041. The next prime is 102203069. The reversal of 102203045 is 540302201.

It is not a de Polignac number, because 102203045 - 2² = 102203041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102203041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88220 + ... + 89370.

It is an arithmetic number, because the mean of its divisors is an integer number (4561920).

Almost surely, 2^102203045 is an apocalyptic number.

It is an amenable number.

102203045 is a deficient number, since it is larger than the sum of its proper divisors (43778395).

102203045 is a wasteful number, since it uses less digits than its factorization.

102203045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 102203045 is about 10109.5521661447. The cubic root of 102203045 is about 467.5426977312.

Adding to 102203045 its reverse (540302201), we get a palindrome (642505246).

The spelling of 102203045 in words is "one hundred two million, two hundred three thousand, forty-five".