2145540097 has 8 divisors (see below), whose sum is σ = 2391314400. Its totient is φ = 1913050944.

The previous prime is 2145540091. The next prime is 2145540107. The reversal of 2145540097 is 7900455412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2145540097 - 2⁷ = 2145539969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145540091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3320947 + ... + 3321592.

It is an arithmetic number, because the mean of its divisors is an integer number (298914300).

Almost surely, 2^2145540097 is an apocalyptic number.

It is an amenable number.

2145540097 is a deficient number, since it is larger than the sum of its proper divisors (245774303).

2145540097 is a wasteful number, since it uses less digits than its factorization.

2145540097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6642575.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 2145540097 is about 46319.9751403215. The cubic root of 2145540097 is about 1289.7698239240.

The spelling of 2145540097 in words is "two billion, one hundred forty-five million, five hundred forty thousand, ninety-seven".