213154536 has 32 divisors (see below), whose sum is σ = 609013440. Its totient is φ = 60901248.

The previous prime is 213154523. The next prime is 213154549. The reversal of 213154536 is 635451312.

It is an interprime number because it is at equal distance from previous prime (213154523) and next prime (213154549).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 634221 + ... + 634556.

It is an arithmetic number, because the mean of its divisors is an integer number (19031670).

Almost surely, 2^213154536 is an apocalyptic number.

It is an amenable number.

213154536 is an abundant number, since it is smaller than the sum of its proper divisors (395858904).

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

213154536 is a wasteful number, since it uses less digits than its factorization.

213154536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268793 (or 1268789 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 213154536 is about 14599.8128755132. The cubic root of 213154536 is about 597.3536563801.

The spelling of 213154536 in words is "two hundred thirteen million, one hundred fifty-four thousand, five hundred thirty-six".