19140037 has 12 divisors (see below), whose sum is σ = 22407840. Its totient is φ = 16300536.

The previous prime is 19139999. The next prime is 19140059. The reversal of 19140037 is 73004191.

It is a de Polignac number, because none of the positive numbers 2^k-19140037 is a prime.

It is a super-2 number, since 2×19140037² = 732682032722738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19139993 and 19140020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19140097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7014 + ... + 9352.

It is an arithmetic number, because the mean of its divisors is an integer number (1867320).

Almost surely, 2^19140037 is an apocalyptic number.

It is an amenable number.

19140037 is a deficient number, since it is larger than the sum of its proper divisors (3267803).

19140037 is a wasteful number, since it uses less digits than its factorization.

19140037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2520 (or 2513 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 19140037 is about 4374.9327994839. The cubic root of 19140037 is about 267.4941309453.

The spelling of 19140037 in words is "nineteen million, one hundred forty thousand, thirty-seven".