102151244 has 12 divisors (see below), whose sum is σ = 192515904. Its totient is φ = 47146704.

The previous prime is 102151241. The next prime is 102151267. The reversal of 102151244 is 442151201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (102151241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 982172 + ... + 982275.

It is an arithmetic number, because the mean of its divisors is an integer number (16042992).

Almost surely, 2^102151244 is an apocalyptic number.

It is an amenable number.

102151244 is a deficient number, since it is larger than the sum of its proper divisors (90364660).

102151244 is a wasteful number, since it uses less digits than its factorization.

102151244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964464 (or 1964462 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 102151244 is about 10106.9898585088. The cubic root of 102151244 is about 467.4636939787.

The spelling of 102151244 in words is "one hundred two million, one hundred fifty-one thousand, two hundred forty-four".