102561734 has 32 divisors (see below), whose sum is σ = 178104960. Its totient is φ = 43804800.

The previous prime is 102561709. The next prime is 102561757. The reversal of 102561734 is 437165201.

It is a junction number, because it is equal to n+sod(n) for n = 102561697 and 102561706.

It is a congruent number.

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, 53822 + ... + 55694.

It is an arithmetic number, because the mean of its divisors is an integer number (5565780).

Almost surely, 2^102561734 is an apocalyptic number.

102561734 is a deficient number, since it is larger than the sum of its proper divisors (75543226).

102561734 is a wasteful number, since it uses less digits than its factorization.

102561734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 102561734 is about 10127.2767316787. The cubic root of 102561734 is about 468.0890174499.

The spelling of 102561734 in words is "one hundred two million, five hundred sixty-one thousand, seven hundred thirty-four".