101405951 has 2 divisors, whose sum is σ = 101405952. Its totient is φ = 101405950.

The previous prime is 101405923. The next prime is 101405971. The reversal of 101405951 is 159504101.

It is a strong prime.

It is an emirp because it is prime and its reverse (159504101) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101405951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101405951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101405971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50702975 + 50702976.

It is an arithmetic number, because the mean of its divisors is an integer number (50702976).

Almost surely, 2^101405951 is an apocalyptic number.

101405951 is a deficient number, since it is larger than the sum of its proper divisors (1).

101405951 is an equidigital number, since it uses as much as digits as its factorization.

101405951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 101405951 is about 10070.0521845718. The cubic root of 101405951 is about 466.3240499369.

The spelling of 101405951 in words is "one hundred one million, four hundred five thousand, nine hundred fifty-one".