101139495 has 16 divisors (see below), whose sum is σ = 162194400. Its totient is φ = 53817344.

The previous prime is 101139491. The next prime is 101139499. The reversal of 101139495 is 594931101.

It is an interprime number because it is at equal distance from previous prime (101139491) and next prime (101139499).

It is a cyclic number.

It is not a de Polignac number, because 101139495 - 2² = 101139491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101139491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 774 + ... + 14243.

It is an arithmetic number, because the mean of its divisors is an integer number (10137150).

Almost surely, 2^101139495 is an apocalyptic number.

101139495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

101139495 is a deficient number, since it is larger than the sum of its proper divisors (61054905).

101139495 is a wasteful number, since it uses less digits than its factorization.

101139495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15474.

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 101139495 is about 10056.8133620944. The cubic root of 101139495 is about 465.9152513396.

The spelling of 101139495 in words is "one hundred one million, one hundred thirty-nine thousand, four hundred ninety-five".