513153401 has 4 divisors (see below), whose sum is σ = 516422052. Its totient is φ = 509884752.

The previous prime is 513153371. The next prime is 513153409. The reversal of 513153401 is 104351315.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104351315 = 5 ⋅20870263.

It can be written as a sum of positive squares in 2 ways, for example, as 240870400 + 272283001 = 15520^2 + 16501^2 .

It is a cyclic number.

It is not a de Polignac number, because 513153401 - 2¹⁰ = 513152377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (513153409) 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, 1634090 + ... + 1634403.

It is an arithmetic number, because the mean of its divisors is an integer number (129105513).

Almost surely, 2^513153401 is an apocalyptic number.

It is an amenable number.

513153401 is a deficient number, since it is larger than the sum of its proper divisors (3268651).

513153401 is a wasteful number, since it uses less digits than its factorization.

513153401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3268650.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 513153401 is about 22652.8894624946. The cubic root of 513153401 is about 800.6002791560.

The spelling of 513153401 in words is "five hundred thirteen million, one hundred fifty-three thousand, four hundred one".