102440961 has 12 divisors (see below), whose sum is σ = 169108992. Its totient is φ = 58537656.

The previous prime is 102440911. The next prime is 102440969. The reversal of 102440961 is 169044201.

It is a de Polignac number, because none of the positive numbers 2^k-102440961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102440969) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 812961 + ... + 813086.

It is an arithmetic number, because the mean of its divisors is an integer number (14092416).

Almost surely, 2^102440961 is an apocalyptic number.

It is an amenable number.

102440961 is a deficient number, since it is larger than the sum of its proper divisors (66668031).

102440961 is a wasteful number, since it uses less digits than its factorization.

102440961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1626060 (or 1626057 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 102440961 is about 10121.3122172967. The cubic root of 102440961 is about 467.9052103663.

The spelling of 102440961 in words is "one hundred two million, four hundred forty thousand, nine hundred sixty-one".