49142191 has 8 divisors (see below), whose sum is σ = 58604544. Its totient is φ = 40290360.

The previous prime is 49142173. The next prime is 49142201. The reversal of 49142191 is 19124194.

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 49142191 - 2¹³ = 49133999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49142131) 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, 152455 + ... + 152776.

It is an arithmetic number, because the mean of its divisors is an integer number (7325568).

Almost surely, 2^49142191 is an apocalyptic number.

49142191 is a deficient number, since it is larger than the sum of its proper divisors (9462353).

49142191 is a wasteful number, since it uses less digits than its factorization.

49142191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305261.

The product of its digits is 2592, while the sum is 31.

The square root of 49142191 is about 7010.1491424933. The cubic root of 49142191 is about 366.2841885871.

The spelling of 49142191 in words is "forty-nine million, one hundred forty-two thousand, one hundred ninety-one".