1213652854 has 16 divisors (see below), whose sum is σ = 1917126000. Its totient is φ = 574638624.

The previous prime is 1213652851. The next prime is 1213652863. The reversal of 1213652854 is 4582563121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213652851) 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, 105372 + ... + 116320.

It is an arithmetic number, because the mean of its divisors is an integer number (119820375).

Almost surely, 2^1213652854 is an apocalyptic number.

1213652854 is a deficient number, since it is larger than the sum of its proper divisors (703473146).

1213652854 is a wasteful number, since it uses less digits than its factorization.

1213652854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13887.

The product of its digits is 57600, while the sum is 37.

The square root of 1213652854 is about 34837.5207786088. The cubic root of 1213652854 is about 1066.6734706380.

The spelling of 1213652854 in words is "one billion, two hundred thirteen million, six hundred fifty-two thousand, eight hundred fifty-four".