101051504149 has 2 divisors, whose sum is σ = 101051504150. Its totient is φ = 101051504148.

The previous prime is 101051504131. The next prime is 101051504273. The reversal of 101051504149 is 941405150101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66755056900 + 34296447249 = 258370^2 + 185193^2 .

It is a cyclic number.

It is not a de Polignac number, because 101051504149 - 2⁵ = 101051504117 is a prime.

It is a super-2 number, since 2×101051504149² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101051504149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101051504119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50525752074 + 50525752075.

It is an arithmetic number, because the mean of its divisors is an integer number (50525752075).

Almost surely, 2^101051504149 is an apocalyptic number.

It is an amenable number.

101051504149 is a deficient number, since it is larger than the sum of its proper divisors (1).

101051504149 is an equidigital number, since it uses as much as digits as its factorization.

101051504149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 31.

The spelling of 101051504149 in words is "one hundred one billion, fifty-one million, five hundred four thousand, one hundred forty-nine".