7138497 has 4 divisors (see below), whose sum is σ = 9518000. Its totient is φ = 4758996.

The previous prime is 7138489. The next prime is 7138513. The reversal of 7138497 is 7948317.

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.

It is not a de Polignac number, because 7138497 - 2³ = 7138489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7138297) 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, 1189747 + ... + 1189752.

It is an arithmetic number, because the mean of its divisors is an integer number (2379500).

Almost surely, 2^7138497 is an apocalyptic number.

It is an amenable number.

7138497 is a deficient number, since it is larger than the sum of its proper divisors (2379503).

7138497 is a wasteful number, since it uses less digits than its factorization.

7138497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2379502.

The product of its digits is 42336, while the sum is 39.

The square root of 7138497 is about 2671.7965865687. The cubic root of 7138497 is about 192.5464845294.

The spelling of 7138497 in words is "seven million, one hundred thirty-eight thousand, four hundred ninety-seven".