102240755 has 16 divisors (see below), whose sum is σ = 124491360. Its totient is φ = 80600832.

The previous prime is 102240739. The next prime is 102240769. The reversal of 102240755 is 557042201.

It is a cyclic number.

It is not a de Polignac number, because 102240755 - 2⁴ = 102240739 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108647 + ... + 109583.

It is an arithmetic number, because the mean of its divisors is an integer number (7780710).

Almost surely, 2^102240755 is an apocalyptic number.

102240755 is a deficient number, since it is larger than the sum of its proper divisors (22250605).

102240755 is a wasteful number, since it uses less digits than its factorization.

102240755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 102240755 is about 10111.4170619157. The cubic root of 102240755 is about 467.6001939539.

Adding to 102240755 its reverse (557042201), we get a palindrome (659282956).

The spelling of 102240755 in words is "one hundred two million, two hundred forty thousand, seven hundred fifty-five".