97405541 has 4 divisors (see below), whose sum is σ = 97713132. Its totient is φ = 97097952.

The previous prime is 97405537. The next prime is 97405547. The reversal of 97405541 is 14550479.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14550479 = 269 ⋅54091.

It can be written as a sum of positive squares in 2 ways, for example, as 14212900 + 83192641 = 3770^2 + 9121^2 .

It is a cyclic number.

It is not a de Polignac number, because 97405541 - 2² = 97405537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97405547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153320 + ... + 153953.

It is an arithmetic number, because the mean of its divisors is an integer number (24428283).

Almost surely, 2^97405541 is an apocalyptic number.

It is an amenable number.

97405541 is a deficient number, since it is larger than the sum of its proper divisors (307591).

97405541 is a wasteful number, since it uses less digits than its factorization.

97405541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307590.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 97405541 is about 9869.4245526272. The cubic root of 97405541 is about 460.1095218109.

The spelling of 97405541 in words is "ninety-seven million, four hundred five thousand, five hundred forty-one".