102054261 has 4 divisors (see below), whose sum is σ = 136072352. Its totient is φ = 68036172.

The previous prime is 102054209. The next prime is 102054269. The reversal of 102054261 is 162450201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-102054261 is a prime.

It is a super-2 number, since 2×102054261² = 20830144376512242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102054269) 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, 17009041 + ... + 17009046.

It is an arithmetic number, because the mean of its divisors is an integer number (34018088).

Almost surely, 2^102054261 is an apocalyptic number.

It is an amenable number.

102054261 is a deficient number, since it is larger than the sum of its proper divisors (34018091).

102054261 is an equidigital number, since it uses as much as digits as its factorization.

102054261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34018090.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 102054261 is about 10102.1909009878. The cubic root of 102054261 is about 467.3157095304.

The spelling of 102054261 in words is "one hundred two million, fifty-four thousand, two hundred sixty-one".