19157941 has 8 divisors (see below), whose sum is σ = 20935584. Its totient is φ = 17386320.

The previous prime is 19157939. The next prime is 19157981. The reversal of 19157941 is 14975191.

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 19157941 - 2¹ = 19157939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19157941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19157921) 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, 7551 + ... + 9763.

It is an arithmetic number, because the mean of its divisors is an integer number (2616948).

Almost surely, 2^19157941 is an apocalyptic number.

19157941 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19157941 is a deficient number, since it is larger than the sum of its proper divisors (1777643).

19157941 is a wasteful number, since it uses less digits than its factorization.

19157941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3011.

The product of its digits is 11340, while the sum is 37.

The square root of 19157941 is about 4376.9785240506. The cubic root of 19157941 is about 267.5775115292.

The spelling of 19157941 in words is "nineteen million, one hundred fifty-seven thousand, nine hundred forty-one".