102045544 has 8 divisors (see below), whose sum is σ = 191335410. Its totient is φ = 51022768.

The previous prime is 102045539. The next prime is 102045547. The reversal of 102045544 is 445540201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 90060100 + 11985444 = 9490^2 + 3462^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (102045547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6377839 + ... + 6377854.

Almost surely, 2^102045544 is an apocalyptic number.

It is an amenable number.

102045544 is a deficient number, since it is larger than the sum of its proper divisors (89289866).

102045544 is a wasteful number, since it uses less digits than its factorization.

102045544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12755699 (or 12755695 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 102045544 is about 10101.7594507096. The cubic root of 102045544 is about 467.3024038406.

Adding to 102045544 its reverse (445540201), we get a palindrome (547585745).

It can be divided in two parts, 1020 and 45544, that added together give a palindrome (46564).

The spelling of 102045544 in words is "one hundred two million, forty-five thousand, five hundred forty-four".