102651061 has 4 divisors (see below), whose sum is σ = 105425452. Its totient is φ = 99876672.

The previous prime is 102651041. The next prime is 102651113. The reversal of 102651061 is 160156201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 160156201 = 17 ⋅9420953.

It can be written as a sum of positive squares in 2 ways, for example, as 72335025 + 30316036 = 8505^2 + 5506^2 .

It is a cyclic number.

It is not a de Polignac number, because 102651061 - 2⁹ = 102650549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102651011) 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, 1387140 + ... + 1387213.

It is an arithmetic number, because the mean of its divisors is an integer number (26356363).

Almost surely, 2^102651061 is an apocalyptic number.

It is an amenable number.

102651061 is a deficient number, since it is larger than the sum of its proper divisors (2774391).

102651061 is an equidigital number, since it uses as much as digits as its factorization.

102651061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2774390.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 102651061 is about 10131.6859900019. The cubic root of 102651061 is about 468.2248733641.

The spelling of 102651061 in words is "one hundred two million, six hundred fifty-one thousand, sixty-one".