49140197 has 8 divisors (see below), whose sum is σ = 50394840. Its totient is φ = 47900160.

The previous prime is 49140191. The next prime is 49140227. The reversal of 49140197 is 79104194.

It can be written as a sum of positive squares in 4 ways, for example, as 1378276 + 47761921 = 1174^2 + 6911^2 .

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 49140197 - 2²⁰ = 48091621 is a prime.

It is a super-2 number, since 2×49140197² = 4829517922397618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49140191) 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, 3329 + ... + 10457.

It is an arithmetic number, because the mean of its divisors is an integer number (6299355).

Almost surely, 2^49140197 is an apocalyptic number.

It is an amenable number.

49140197 is a deficient number, since it is larger than the sum of its proper divisors (1254643).

49140197 is a wasteful number, since it uses less digits than its factorization.

49140197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7303.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 49140197 is about 7010.0069186842. The cubic root of 49140197 is about 366.2792343883.

The spelling of 49140197 in words is "forty-nine million, one hundred forty thousand, one hundred ninety-seven".