213701274 has 16 divisors (see below), whose sum is σ = 474891840. Its totient is φ = 71233740.

The previous prime is 213701269. The next prime is 213701281. The reversal of 213701274 is 472107312.

It is a happy number.

213701274 is a `hidden beast` number, since 21 + 370 + 1 + 274 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 1978662 + ... + 1978769.

It is an arithmetic number, because the mean of its divisors is an integer number (29680740).

Almost surely, 2^213701274 is an apocalyptic number.

213701274 is an abundant number, since it is smaller than the sum of its proper divisors (261190566).

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

213701274 is a wasteful number, since it uses less digits than its factorization.

213701274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3957442 (or 3957436 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 213701274 is about 14618.5250281962. The cubic root of 213701274 is about 597.8639545405.

Adding to 213701274 its reverse (472107312), we get a palindrome (685808586).

The spelling of 213701274 in words is "two hundred thirteen million, seven hundred one thousand, two hundred seventy-four".