101049631 has 2 divisors, whose sum is σ = 101049632. Its totient is φ = 101049630.

The previous prime is 101049607. The next prime is 101049647. The reversal of 101049631 is 136940101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101049631 - 2²¹ = 98952479 is a prime.

It is a super-2 number, since 2×101049631² = 20422055850472322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101049596 and 101049605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101019631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50524815 + 50524816.

It is an arithmetic number, because the mean of its divisors is an integer number (50524816).

Almost surely, 2^101049631 is an apocalyptic number.

101049631 is a deficient number, since it is larger than the sum of its proper divisors (1).

101049631 is an equidigital number, since it uses as much as digits as its factorization.

101049631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 101049631 is about 10052.3445523917. The cubic root of 101049631 is about 465.7772194900. Note that the first 3 decimals are identical.

Adding to 101049631 its reverse (136940101), we get a palindrome (237989732).

The spelling of 101049631 in words is "one hundred one million, forty-nine thousand, six hundred thirty-one".