102115746 has 12 divisors (see below), whose sum is σ = 221250822. Its totient is φ = 34038576.

The previous prime is 102115733. The next prime is 102115763. The reversal of 102115746 is 647511201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 56025225 + 46090521 = 7485^2 + 6789^2 .

It is a super-2 number, since 2×102115746² = 20855251162273032, which contains 22 as substring.

It is a Curzon 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 in 5 ways as a sum of consecutive naturals, for example, 2836531 + ... + 2836566.

Almost surely, 2^102115746 is an apocalyptic number.

102115746 is an abundant number, since it is smaller than the sum of its proper divisors (119135076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102115746 is a wasteful number, since it uses less digits than its factorization.

102115746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5673105 (or 5673102 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 102115746 is about 10105.2335945291. The cubic root of 102115746 is about 467.4095391520.

Adding to 102115746 its reverse (647511201), we get a palindrome (749626947).

The spelling of 102115746 in words is "one hundred two million, one hundred fifteen thousand, seven hundred forty-six".