1051372213 has 4 divisors (see below), whose sum is σ = 1052772928. Its totient is φ = 1049971500.

The previous prime is 1051372169. The next prime is 1051372229. The reversal of 1051372213 is 3122731501.

It is a happy number.

1051372213 is nontrivially palindromic in base 7.

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 1051372213 - 2⁹ = 1051371701 is a prime.

It is a super-2 number, since 2×1051372213² = 2210767060537034738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051372013) 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, 699231 + ... + 700732.

It is an arithmetic number, because the mean of its divisors is an integer number (263193232).

Almost surely, 2^1051372213 is an apocalyptic number.

It is an amenable number.

1051372213 is a deficient number, since it is larger than the sum of its proper divisors (1400715).

1051372213 is an equidigital number, since it uses as much as digits as its factorization.

1051372213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400714.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 1051372213 is about 32424.8702850142. The cubic root of 1051372213 is about 1016.8389298833.

The spelling of 1051372213 in words is "one billion, fifty-one million, three hundred seventy-two thousand, two hundred thirteen".