5151490 has 8 divisors (see below), whose sum is σ = 9272700. Its totient is φ = 2060592.

The previous prime is 5151481. The next prime is 5151491. The reversal of 5151490 is 941515.

It can be written as a sum of positive squares in 2 ways, for example, as 4923961 + 227529 = 2219^2 + 477^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (5151491) 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, 257565 + ... + 257584.

Almost surely, 2^5151490 is an apocalyptic number.

5151490 is a deficient number, since it is larger than the sum of its proper divisors (4121210).

5151490 is a wasteful number, since it uses less digits than its factorization.

5151490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515156.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 5151490 is about 2269.6894060642. The cubic root of 5151490 is about 172.7074029859.

Adding to 5151490 its sum of digits (25), we get a palindrome (5151515).

The spelling of 5151490 in words is "five million, one hundred fifty-one thousand, four hundred ninety".