102626381 has 8 divisors (see below), whose sum is σ = 120568224. Its totient is φ = 86119920.

The previous prime is 102626371. The next prime is 102626387. The reversal of 102626381 is 183626201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102626381 is a prime.

It is a super-2 number, since 2×102626381² = 21064348154314322, 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 (102626387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358691 + ... + 358976.

It is an arithmetic number, because the mean of its divisors is an integer number (15071028).

Almost surely, 2^102626381 is an apocalyptic number.

102626381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102626381 is a deficient number, since it is larger than the sum of its proper divisors (17941843).

102626381 is a wasteful number, since it uses less digits than its factorization.

102626381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717691.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 102626381 is about 10130.4679556277. The cubic root of 102626381 is about 468.1873458543.

The spelling of 102626381 in words is "one hundred two million, six hundred twenty-six thousand, three hundred eighty-one".