1672513213 has 4 divisors (see below), whose sum is σ = 1911443680. Its totient is φ = 1433582748.

The previous prime is 1672513181. The next prime is 1672513231. The reversal of 1672513213 is 3123152761.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 1672513213 - 2⁵ = 1672513181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672513253) 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, 119465223 + ... + 119465236.

It is an arithmetic number, because the mean of its divisors is an integer number (477860920).

Almost surely, 2^1672513213 is an apocalyptic number.

It is an amenable number.

1672513213 is a deficient number, since it is larger than the sum of its proper divisors (238930467).

1672513213 is an equidigital number, since it uses as much as digits as its factorization.

1672513213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238930466.

The product of its digits is 7560, while the sum is 31.

The square root of 1672513213 is about 40896.3716361244. The cubic root of 1672513213 is about 1187.0158529878.

Adding to 1672513213 its reverse (3123152761), we get a palindrome (4795665974).

The spelling of 1672513213 in words is "one billion, six hundred seventy-two million, five hundred thirteen thousand, two hundred thirteen".