102061901 has 4 divisors (see below), whose sum is σ = 107433600. Its totient is φ = 96690204.

The previous prime is 102061891. The next prime is 102061903. The reversal of 102061901 is 109160201.

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, and also an emirpimes, since its reverse is a distinct semiprime: 109160201 = 3331 ⋅32771.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102061901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102061903) 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, 2685821 + ... + 2685858.

It is an arithmetic number, because the mean of its divisors is an integer number (26858400).

Almost surely, 2^102061901 is an apocalyptic number.

It is an amenable number.

102061901 is a deficient number, since it is larger than the sum of its proper divisors (5371699).

102061901 is an equidigital number, since it uses as much as digits as its factorization.

102061901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5371698.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 102061901 is about 10102.5690297072. The cubic root of 102061901 is about 467.3273706569.

The spelling of 102061901 in words is "one hundred two million, sixty-one thousand, nine hundred one".