10187949 has 4 divisors (see below), whose sum is σ = 13583936. Its totient is φ = 6791964.

The previous prime is 10187941. The next prime is 10187951. The reversal of 10187949 is 94978101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94978101 = 3 ⋅31659367.

It is not a de Polignac number, because 10187949 - 2³ = 10187941 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 (10187941) 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, 1697989 + ... + 1697994.

It is an arithmetic number, because the mean of its divisors is an integer number (3395984).

Almost surely, 2^10187949 is an apocalyptic number.

It is an amenable number.

10187949 is a deficient number, since it is larger than the sum of its proper divisors (3395987).

10187949 is an equidigital number, since it uses as much as digits as its factorization.

10187949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3395986.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 10187949 is about 3191.8566697144. The cubic root of 10187949 is about 216.7848462445.

The spelling of 10187949 in words is "ten million, one hundred eighty-seven thousand, nine hundred forty-nine".