213963100 has 36 divisors (see below), whose sum is σ = 500018344. Its totient is φ = 79001280.

The previous prime is 213963097. The next prime is 213963103. The reversal of 213963100 is 1369312.

It is an interprime number because it is at equal distance from previous prime (213963097) and next prime (213963103).

It is a super-2 number, since 2×213963100² = 91560416323220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213963103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80994 + ... + 83593.

Almost surely, 2^213963100 is an apocalyptic number.

213963100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213963100 is an abundant number, since it is smaller than the sum of its proper divisors (286055244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213963100 is a wasteful number, since it uses less digits than its factorization.

213963100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164614 (or 164607 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 213963100 is about 14627.4775679199. The cubic root of 213963100 is about 598.1080217830.

The spelling of 213963100 in words is "two hundred thirteen million, nine hundred sixty-three thousand, one hundred".