101449631 has 2 divisors, whose sum is σ = 101449632. Its totient is φ = 101449630.

The previous prime is 101449571. The next prime is 101449643. The reversal of 101449631 is 136944101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101449631 is a prime.

It is a super-2 number, since 2×101449631² = 20584055260072322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101449594 and 101449603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101449651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50724815 + 50724816.

It is an arithmetic number, because the mean of its divisors is an integer number (50724816).

Almost surely, 2^101449631 is an apocalyptic number.

101449631 is a deficient number, since it is larger than the sum of its proper divisors (1).

101449631 is an equidigital number, since it uses as much as digits as its factorization.

101449631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 101449631 is about 10072.2207581049. The cubic root of 101449631 is about 466.3909957469.

The spelling of 101449631 in words is "one hundred one million, four hundred forty-nine thousand, six hundred thirty-one".