1994514137 has 48 divisors (see below), whose sum is σ = 2699163648. Its totient is φ = 1430872320.

The previous prime is 1994514131. The next prime is 1994514173. The reversal of 1994514137 is 7314154991.

It is a happy number.

It is not a de Polignac number, because 1994514137 - 2¹² = 1994510041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1994514131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1044938 + ... + 1046844.

It is an arithmetic number, because the mean of its divisors is an integer number (56232576).

Almost surely, 2^1994514137 is an apocalyptic number.

1994514137 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1994514137 is a deficient number, since it is larger than the sum of its proper divisors (704649511).

1994514137 is a wasteful number, since it uses less digits than its factorization.

1994514137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006 (or 1989 counting only the distinct ones).

The product of its digits is 136080, while the sum is 44.

The square root of 1994514137 is about 44659.9836206867. The cubic root of 1994514137 is about 1258.7680359936.

The spelling of 1994514137 in words is "one billion, nine hundred ninety-four million, five hundred fourteen thousand, one hundred thirty-seven".