101955897 has 6 divisors (see below), whose sum is σ = 147269642. Its totient is φ = 67970592.

The previous prime is 101955883. The next prime is 101955911. The reversal of 101955897 is 798559101.

101955897 is a `hidden beast` number, since 1 + 0 + 1 + 9 + 558 + 97 = 666.

It is an interprime number because it is at equal distance from previous prime (101955883) and next prime (101955911).

It can be written as a sum of positive squares in only one way, i.e., 66243321 + 35712576 = 8139^2 + 5976^2 .

It is not a de Polignac number, because 101955897 - 2⁷ = 101955769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101955857) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5664208 + ... + 5664225.

Almost surely, 2^101955897 is an apocalyptic number.

It is an amenable number.

101955897 is a deficient number, since it is larger than the sum of its proper divisors (45313745).

101955897 is a wasteful number, since it uses less digits than its factorization.

101955897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11328439 (or 11328436 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 45.

The square root of 101955897 is about 10097.3212784382. The cubic root of 101955897 is about 467.1655220445.

The spelling of 101955897 in words is "one hundred one million, nine hundred fifty-five thousand, eight hundred ninety-seven".