901640255 has 8 divisors (see below), whose sum is σ = 1082162400. Its totient is φ = 721182816.

The previous prime is 901640251. The next prime is 901640279. The reversal of 901640255 is 552046109.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 901640255 - 2² = 901640251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (901640251) 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, 23201 + ... + 48389.

It is an arithmetic number, because the mean of its divisors is an integer number (135270300).

Almost surely, 2^901640255 is an apocalyptic number.

901640255 is a deficient number, since it is larger than the sum of its proper divisors (180522145).

901640255 is a wasteful number, since it uses less digits than its factorization.

901640255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32353.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 901640255 is about 30027.3251389464. The cubic root of 901640255 is about 966.0755652330.

The spelling of 901640255 in words is "nine hundred one million, six hundred forty thousand, two hundred fifty-five".