13148977 has 8 divisors (see below), whose sum is σ = 13827240. Its totient is φ = 12485760.

The previous prime is 13148963. The next prime is 13148999. The reversal of 13148977 is 77984131.

It can be written as a sum of positive squares in 4 ways, for example, as 361201 + 12787776 = 601^2 + 3576^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13148977 - 2¹¹ = 13146929 is a prime.

It is a super-2 number, since 2×13148977² = 345791192293058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13148957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1948 + ... + 5485.

It is an arithmetic number, because the mean of its divisors is an integer number (1728405).

Almost surely, 2^13148977 is an apocalyptic number.

It is an amenable number.

13148977 is a deficient number, since it is larger than the sum of its proper divisors (678263).

13148977 is an equidigital number, since it uses as much as digits as its factorization.

13148977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7523.

The product of its digits is 42336, while the sum is 40.

The square root of 13148977 is about 3626.1518170093. The cubic root of 13148977 is about 236.0282511904.

The spelling of 13148977 in words is "thirteen million, one hundred forty-eight thousand, nine hundred seventy-seven".