102054251 has 16 divisors (see below), whose sum is σ = 113392608. Its totient is φ = 91238400.

The previous prime is 102054209. The next prime is 102054269. The reversal of 102054251 is 152450201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102054251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102054751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158891 + ... + 159531.

It is an arithmetic number, because the mean of its divisors is an integer number (7087038).

Almost surely, 2^102054251 is an apocalyptic number.

102054251 is a deficient number, since it is larger than the sum of its proper divisors (11338357).

102054251 is a wasteful number, since it uses less digits than its factorization.

102054251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 102054251 is about 10102.1904060456. The cubic root of 102054251 is about 467.3156942668.

The spelling of 102054251 in words is "one hundred two million, fifty-four thousand, two hundred fifty-one".