1052991213 has 8 divisors (see below), whose sum is σ = 1411339776. Its totient is φ = 698318400.

The previous prime is 1052991197. The next prime is 1052991259. The reversal of 1052991213 is 3121992501.

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

It is not a de Polignac number, because 1052991213 - 2⁴ = 1052991197 is a prime.

It is a super-2 number, since 2×1052991213² = 2217580989310422738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052991293) 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, 918268 + ... + 919413.

It is an arithmetic number, because the mean of its divisors is an integer number (176417472).

Almost surely, 2^1052991213 is an apocalyptic number.

It is an amenable number.

1052991213 is a deficient number, since it is larger than the sum of its proper divisors (358348563).

1052991213 is a wasteful number, since it uses less digits than its factorization.

1052991213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837875.

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 1052991213 is about 32449.8260858206. The cubic root of 1052991213 is about 1017.3606030222.

The spelling of 1052991213 in words is "one billion, fifty-two million, nine hundred ninety-one thousand, two hundred thirteen".